See Conditions by First Letter (ALL)
- Abdomen, Acute
- Abdominal Abscess
- Abdominal Aortic Aneurysm
- Abdominal Injuries
- Abdominal Neoplasms
- Abdominal Obesity Metabolic Syndrome
- Abdominal Pain
- Aberrant Crypt Foci
- Abetalipoproteinemia
- Abnormalities, Drug-Induced
- Abnormalities, Multiple
- Abnormalities, Radiation-Induced
- Abortion, Habitual
- Abortion, Incomplete
- Abortion, Missed
- Abortion, Septic
- Abortion, Spontaneous
- Abortion, Threatened
- Abrikosov's Tumor
- Abruptio Placentae
- Abscess
- Absent T Lymphocytes
- Acalculous Cholecystitis
- Acanthocheilonemiasis
- Acanthocytosis
- Acanthosis Nigricans
- Accelerated Idioventricular Rhythm
- Achalasia
- Achlorhydria
- Achondroplasia
- Acid-Base Imbalance
- Acidosis
- Acidosis, Lactic
- Acidosis, Renal Tubular
- Acidosis, Respiratory
- Acinetobacter Infections
- Acinic Cell Carcinoma
- Acne Keloid
- Acne Vulgaris
- Acoustic Neuroma
- Acquired Fructose Intolerance
- Acquired Hemophilia
- Acquired Hyperostosis Syndrome
- Acquired Immunodeficiency Syndrome
- Acquired Von Willebrand Syndrome
- Acral Lentiginous Melanoma
- Acromegaly
- ACTH Syndrome, Ectopic
- ACTH-Secreting Pituitary Adenoma
- Actinic Cheilitis
- Acute Articular Rheumatism
- Acute Biphenotypic Leukemia
- Acute Chest Syndrome
- Acute Coronary Syndrome
- Acute Disease
- Acute Disseminated Encephalomyelitis
- Acute Erythroblastic Leukemia
- Acute Erythroid Leukemia
- Acute Graft Versus Host Disease
- Acute Intermittent Porphyria
- Acute Kidney Injury
- Acute Lung Injury
- Acute Lymphoblastic Leukemia
- Acute Lymphoblastic Leukemia, Childhood
- Acute Megakaryoblastic Leukemia
- Acute Monoblastic Leukemia
- Acute Mountain Sickness
- Acute Myeloblastic Leukemia With Maturation
- Acute Myeloblastic Leukemia Without Maturation
- Acute Myelocytic Leukemia
- Acute Myeloid Leukemia, Adult
- Acute Myeloid Leukemia, Childhood
- Acute Myelomonocytic Leukemia
- Acute Non Lymphoblastic Leukemia
- Acute Promyelocytic Leukemia
- Acute Radiation Syndrome
- Acute Respiratory Distress Syndrome
- Acute-Phase Reaction
- Adamantinoma
- Adams-Stokes Syndrome
- Addison Disease
- Adenine Phosphoribosyltransferase Deficiency
- Adenocarcinoma
- Adenocarcinoma of Lung
- Adenocarcinoma of the Appendix
- Adenocarcinoma, Bronchiolo-Alveolar
- Adenocarcinoma, Clear Cell
- Adenocarcinoma, Follicular
- Adenocarcinoma, Mucinous
- Adenocarcinoma, Papillary
- Adenocarcinoma, Scirrhous
- Adenocarcinoma, Sebaceous
- Adenoid Cystic Carcinoma
- Adenoma
- Adenoma of the Adrenal Gland
- Adenoma, Acidophil
- Adenoma, Basophil
- Adenoma, Chromophobe
- Adenoma, Islet Cell
- Adenoma, Liver Cell
- Adenoma, Pleomorphic
- Adenoma, Villous
- Adenomatous Polyposis Coli
- Adenomatous Polyps
- Adenomyoepithelioma
- Adenomyosis
- Adenosine Deaminase Deficiency
- Adenoviridae Infections
- Adenovirus Infections, Human
- Adjustment Disorders
- Adnexal Diseases
- Adrenal Cancer
- Adrenal Cortex Diseases
- Adrenal Cortex Neoplasms
- Adrenal Gland Diseases
- Adrenal Gland Neoplasms
- Adrenal Hyperplasia, Congenital
- Adrenal Insufficiency
- Adrenocortical Adenoma
- Adrenocortical Carcinoma
- Adrenocortical Hyperfunction
- Adrenogenital Syndrome
- Adrenoleukodystrophy
- Adrenoleukodystrophy X-linked
- Adrenomyeloneuropathy
- Adult Neuronal Ceroid Lipofuscinosis
- Affective Disorders, Psychotic
- Affective Symptoms
- Afibrinogenemia
- Agammaglobulinemia
- Ageusia
- Aggression
- Aggressive NK Cell Leukemia
- Aggressive Periodontitis
- Aging, Premature
- Agnosia
- Agoraphobia
- Agranulocytosis
- Agraphia
- Aicardi Syndrome
- AIDS Dementia Complex
- AIDS-Associated Nephropathy
- AIDS-Related Complex
- AIDS-Related Opportunistic Infections
- Airway Obstruction
- Airway Remodeling
- Akathisia, Drug-Induced
- AL Amyloidosis
- Alagille Syndrome
- Albinism
- Albinism, Ocular
- Albinism, Oculocutaneous
- Albright's Hereditary Osteodystrophy
- Albuminuria
- Alcohol Amnestic Disorder
- Alcohol Drinking
- Alcohol Withdrawal Delirium
- Alcohol Withdrawal Seizures
- Alcohol-Induced Disorders
- Alcohol-Related Disorders
- Alcoholic Intoxication
- Alcoholic Neuropathy
- Alcoholism
- Alkalosis
- Alkalosis, Respiratory
- Alkaptonuria
- Allergic Bronchopulmonary Aspergillosis
- Alopecia
- Alopecia Areata
- Alpha 1-Antitrypsin Deficiency
- Alpha-Mannosidosis
- Alpha-Thalassemia
- Alphavirus Infections
- Alport Syndrome
- Alstrom Syndrome
- Alternating Hemiplegia of Childhood
- Altitude Sickness
- Alveolar Bone Loss
- Alveolar Echinococcosis
- Alveolar Soft Part Sarcoma
- Alveolitis, Extrinsic Allergic
- Alzheimer Disease
- Alzheimer Disease Familial
- Alzheimer Disease Type 2
- Amaurosis Fugax
- Amblyopia
- Amebiasis
- Amelogenesis Imperfecta
- Amenorrhea
- Amino Acid Metabolism, Inborn Errors
- Amnesia
- Amphetamine-Related Disorders
- Amputation, Traumatic
- Amyloid Neuropathies
- Amyloid Neuropathies, Familial
- Amyloidosis
- Amyloidosis AA
- Amyloidosis Cerebral
- Amyloidosis, Familial
- Amyotrophic Lateral Sclerosis
- Anal Cancer
- Anaphylaxis
- Anaplasmosis
- Anaplastic Astrocytoma
- Anaplastic Ependymoma
- Anaplastic Large Cell Lymphoma
- Anaplastic Oligoastrocytoma
- Anaplastic Oligodendroglioma
- Anaplastic Plasmacytoma
- Anastomotic Leak
- Ancylostomiasis
- Andersen Syndrome
- Andersen-Tawil Syndrome
- Anemia
- Anemia, Aplastic
- Anemia, Diamond-Blackfan
- Anemia, Dyserythropoietic, Congenital
- Anemia, Hemolytic
- Anemia, Hemolytic, Autoimmune
- Anemia, Hemolytic, Congenital
- Anemia, Hemolytic, Congenital Nonspherocytic
- Anemia, Hypochromic
- Anemia, Hypoplastic, Congenital
- Anemia, Iron-Deficiency
- Anemia, Neonatal
- Anemia, Refractory
- Anemia, Refractory, with Excess of Blasts
- Anemia, Sickle Cell
- Anemia, Sideroblastic
- Anencephaly
- Aneuploidy
- Aneurysm
- Aneurysm, Dissecting
- Aneurysm, Ruptured
- Angelman Syndrome
- Angina Pectoris
- Angina Pectoris, Variant
- Angina, Unstable
- Angiodysplasia
- Angioedema
- Angioedemas, Hereditary
- Angiofibroma
- Angiofollicular Lymph Hyperplasia
- Angioid Streaks
- Angioimmunoblastic Lymphadenopathy With Dysproteinemia
- Angiolipoma
- Angiomatosis
- Angiomatous Lymphoid Hamartoma
- Angiomyolipoma
- Aniridia
- Anisometropia
- Ankle Injuries
- Ankylosis
- Anodontia
- Anomia
- Anophthalmos
- Anorectal Atresia
- Anorexia
- Anorexia Nervosa
- Anovulation
- Anoxia
- Anterior Compartment Syndrome
- Anterior Uveitis
- Anterior Wall Myocardial Infarction
- Anthrax
- Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis
- Antiphospholipid Syndrome
- Antisocial Personality Disorder
- Antisynthetase Syndrome
- Antithrombin III Deficiency
- Anuria
- Anus Diseases
- Anus Neoplasms
- Anus, Imperforate
- Anxiety Disorders
- Anxiety, Separation
- Aortic Aneurysm
- Aortic Aneurysm, Abdominal
- Aortic Aneurysm, Thoracic
- Aortic Arch Syndromes
- Aortic Coarctation
- Aortic Diseases
- Aortic Rupture
- Aortic Valve Insufficiency
- Aortic Valve Stenosis
- Aphakia
- Aphasia
- Aphasia, Broca
- Aphasia, Primary Progressive
- Aphthous Stomatitis
- Aplasia Cutis Congenita
- Aplastic Anemia
- Apnea
- Apparent Mineralocorticoid Excess
- Appendiceal Neoplasms
- Appendicitis
- Apraxia, Ideomotor
- Apraxias
- Arachnidism
- Arachnodactyly
- Arachnoiditis
- Arbovirus Infections
- Arginase Deficiency
- Argininosuccinic Aciduria
- Arm Injuries
- Arnold-Chiari Malformation
- Aromatic Amino Acid Decarboxylase Deficiency
- Arrhythmia, Sinus
- Arrhythmias, Cardiac
- Arrhythmogenic Right Ventricular Dysplasia
- Arsenic Poisoning
- Arterial Calcification Due to CD73 Deficiency
- Arterial Occlusive Diseases
- Arteriosclerosis
- Arteriosclerosis Obliterans
- Arteriovenous Fistula
- Arteriovenous Malformations
- Arteritis
- Arthralgia
- Arthritis
- Arthritis, Experimental
- Arthritis, Gouty
- Arthritis, Infectious
- Arthritis, Juvenile Rheumatoid
- Arthritis, Psoriatic
- Arthritis, Reactive
- Arthritis, Rheumatoid
- Arthrogryposis
- Arthrogryposis Multiplex Congenita
- Arthropathy, Neurogenic
- Articulation Disorders
- Asbestosis
- Ascariasis
- Ascaridiasis
- Ascites
- Ascorbic Acid Deficiency
- Asherman's Syndrome
- Aspartylglucosaminuria
- Aspartylglycosaminuria
- Asperger Syndrome
- Aspergillosis
- Aspergillosis, Allergic Bronchopulmonary
- Asphyxia
- Asphyxia Neonatorum
- Asthenia
- Asthenopia
- Asthenozoospermia
- Asthma
- Asthma, Aspirin-Induced
- Asthma, Exercise-Induced
- Astigmatism
- Astrocytoma
- Asymptomatic Infections
- Ataxia
- Ataxia Telangiectasia
- Atherosclerosis
- Athletic Injuries
- Atrial Fibrillation
- Atrial Flutter
- Atrial Myxoma, Familial
- Atrial Premature Complexes
- Atrioventricular Block
- Atrioventricular Septal Defect
- Atrophy
- Attention Deficit and Disruptive Behavior Disorders
- Attention Deficit Disorder with Hyperactivity
- Attenuated Familial Adenomatous Polyposis
- Atypical Hemolytic Uremic Syndrome
- Auditory Diseases, Central
- Auditory Neuropathy
- Auditory Perceptual Disorders
- Autistic Disorder
- Autoimmune Diseases
- Autoimmune Diseases of the Nervous System
- Autoimmune Enteropathy
- Autoimmune Hemolytic Anemia
- Autoimmune Hepatitis
- Autoimmune Inner Ear Disease
- Autoimmune Lymphoproliferative Syndrome
- Autoimmune Pancreatitis
- Autonomic Dysreflexia
- Autonomic Nervous System Diseases
- Autosomal Dominant Partial Epilepsy With Auditory Features
- Autosomal Recessive Hyper IgE Syndrome
- Autosomal Recessive Polycystic Kidney Disease
- Avitaminosis
- Azoospermia
- Azotemia
- B Cell Prolymphocytic Leukemia
- B-cell Lymphomas
- Babesiosis
- Back Injuries
- Back Pain
- Bacteremia
- Bacterial Infections
- Bacterial Meningitis
- Bacteriuria
- Balo Disease
- Balo's Concentric Sclerosis
- Bardet-Biedl Syndrome
- Bare Lymphocyte Syndrome
- Bare Lymphocyte Syndrome 2
- Barotrauma
- Barraquer-Simons Syndrome
- Barrett Esophagus
- Barth Syndrome
- Bartonella Infections
- Bartter Syndrome
- Basal Cell Carcinoma, Multiple
- Basal Cell Nevus Syndrome
- Basal Ganglia Diseases
- Basilar Migraine
- Batten Disease
- Becker Muscular Dystrophy
- Becker's Nevus
- Behavior, Addictive
- Behavioral Symptoms
- Behcet Syndrome
- Behcet's Disease
- Bell Palsy
- Benign Paroxysmal Positional Vertigo
- Berger Disease
- Beriberi
- Berylliosis
- Best Vitelliform Macular Dystrophy
- Beta-galactosidase-1 Deficiency
- Beta-Thalassemia
- Bethlem Myopathy
- Bile Duct Cancer
- Bile Duct Diseases
- Bile Duct Neoplasms
- Bile Reflux
- Biliary Atresia
- Biliary Dyskinesia
- Biliary Fistula
- Biliary Tract Cancer
- Biliary Tract Diseases
- Biliary Tract Neoplasms
- Binge-Eating Disorder
- Biotinidase Deficiency
- Bipolar Disorder
- Birdshot Chorioretinopathy
- Birt-Hogg-Dube Syndrome
- Birth Injuries
- Birth Weight
- Bites and Stings
- BK-virus Nephropathy
- Bladder Exstrophy
- Blast Crisis
- Blast Injuries
- Blastic Plasmacytoid Dendritic Cell
- Blastocystis Infections
- Blastoma
- Blastomycosis
- Blepharitis
- Blepharoptosis
- Blepharospasm
- Blind Loop Syndrome
- Blindness
- Blister
- Blood Coagulation Disorders
- Blood Coagulation Disorders, Inherited
- Blood Group Incompatibility
- Blood Loss, Surgical
- Blood Platelet Disorders
- Blood Protein Disorders
- Bloom Syndrome
- Body Dysmorphic Disorders
- Body Weight
- Body Weight Changes
- Bone Cancer
- Bone Cysts
- Bone Demineralization, Pathologic
- Bone Diseases
- Bone Diseases, Developmental
- Bone Diseases, Endocrine
- Bone Diseases, Metabolic
- Bone Marrow Diseases
- Bone Marrow Neoplasms
- Bone Neoplasms
- Bone Resorption
- Borderline Personality Disorder
- Borrelia Infections
- Botulism
- Bourneville Syndrome
- Bowen's Disease
- Brachial Plexus Neuritis
- Brachial Plexus Neuropathies
- Bradycardia
- Brain Concussion
- Brain Damage, Chronic
- Brain Death
- Brain Diseases
- Brain Diseases, Metabolic
- Brain Diseases, Metabolic, Inborn
- Brain Edema
- Brain Hemorrhage, Traumatic
- Brain Infarction
- Brain Injuries
- Brain Injury, Chronic
- Brain Ischemia
- Brain Neoplasms
- Brain Stem Glioma, Childhood
- Brain Stem Infarctions
- Brain Stem Neoplasms
- Brain Tumor, Adult
- Brain Tumor, Childhood
- Breast Cancer, Male
- Breast Cyst
- Breast Diseases
- Breast Neoplasms
- Breast Neoplasms, Male
- Breech Presentation
- Brenner Tumor
- Brenner Tumor of Ovary
- Brittle Cornea Syndrome
- Bronchial Diseases
- Bronchial Hyperreactivity
- Bronchial Neoplasms
- Bronchial Spasm
- Bronchiectasis
- Bronchiolitis
- Bronchiolitis Obliterans
- Bronchiolitis Obliterans Organizing Pneumonia
- Bronchiolitis, Viral
- Bronchitis
- Bronchitis, Chronic
- Bronchopneumonia
- Bronchopulmonary Dysplasia
- Brown-Sequard Syndrome
- Brucellosis
- Brugada Syndrome
- Bruxism
- Budd-Chiari Syndrome
- Buerger Disease
- Bulbo-Spinal Atrophy, X-Linked
- Bulimia
- Bulimia Nervosa
- Bullous Pemphigoid
- Bullying
- Bundle-Branch Block
- Burkholderia Infections
- Burkitt Lymphoma
- Burnett Schwartz Berberian Syndrome
- Burning Mouth Syndrome
- Burns
- Burns, Chemical
- Burns, Electric
- Bursitis
- Buruli Ulcer
- Cachexia
- CADASIL
- Cadaver
- Calcinosis
- Calciphylaxis
- Calcium Metabolism Disorders
- Calculi
- Callosities
- Campylobacter Infections
- Camurati-Engelmann Disease
- Canavan Disease
- Candidemia
- Candidiasis
- Candidiasis, Chronic Mucocutaneous
- Candidiasis, Cutaneous
- Candidiasis, Invasive
- Candidiasis, Oral
- Candidiasis, Vulvovaginal
- Capillary Hemangioblastoma
- Capillary Leak Syndrome
- Capsule Opacification
- Carbamoyl Phosphate Synthetase 1 Deficiency
- Carbamoyl-Phosphate Synthase I Deficiency Disease
- Carbon Monoxide Poisoning
- Carbuncle
- Carcinoid Syndrome
- Carcinoid Tumor
- Carcinoma
- Carcinoma in Situ
- Carcinoma, Acinar Cell
- Carcinoma, Adenoid Cystic
- Carcinoma, Adenosquamous
- Carcinoma, Basal Cell
- Carcinoma, Basosquamous
- Carcinoma, Bronchogenic
- Carcinoma, Ductal
- Carcinoma, Ductal, Breast
- Carcinoma, Embryonal
- Carcinoma, Endometrioid
- Carcinoma, Giant Cell
- Carcinoma, Hepatocellular
- Carcinoma, Intraductal, Noninfiltrating
- Carcinoma, Islet Cell
- Carcinoma, Large Cell
- Carcinoma, Lobular
- Carcinoma, Medullary
- Carcinoma, Merkel Cell
- Carcinoma, Mucoepidermoid
- Carcinoma, Neuroendocrine
- Carcinoma, Non-Small-Cell Lung
- Carcinoma, Pancreatic Ductal
- Carcinoma, Papillary
- Carcinoma, Renal Cell
- Carcinoma, Signet Ring Cell
- Carcinoma, Small Cell
- Carcinoma, Squamous Cell
- Carcinoma, Transitional Cell
- Carcinoma, Verrucous
- Carcinosarcoma
- Cardiac Complexes, Premature
- Cardiac Output, High
- Cardiac Output, Low
- Cardiac Tamponade
- Cardiomegaly
- Cardiomyopathies
- Cardiomyopathy, Alcoholic
- Cardiomyopathy, Dilated
- Cardiomyopathy, Hypertrophic
- Cardiomyopathy, Hypertrophic, Familial
- Cardiomyopathy, Restrictive
- Cardiospasm
- Cardiovascular Abnormalities
- Cardiovascular Infections
- Carney Complex
- Carnitine Palmitoyltransferase 2 Deficiency
- Caroli Disease
- Carotid Artery Diseases
- Carotid Artery Injuries
- Carotid Stenosis
- Carpal Tunnel Syndrome
- Cartilage Diseases
- Castleman's Disease
- Cat-Scratch Disease
- Cataplexy
- Cataract
- Catastrophic Antiphospholipid Syndrome
- Catatonia
- Catheter-Related Infections
- Causalgia
- Celiac Disease
- Cell Transformation, Neoplastic
- Cellulitis
- Central Centrifugal Cicatricial Alopecia
- Central Cord Syndrome
- Central Core Disease
- Central Nervous System Diseases
- Central Nervous System Fungal Infections
- Central Nervous System Infections
- Central Nervous System Lymphoma, Primary
- Central Nervous System Neoplasms
- Central Nervous System Vascular Malformations
- Central Nervous System Viral Diseases
- Central Post-stroke Pain
- Central Serous Chorioretinopathy
- Cephalopelvic Disproportion
- Cerebellar Astrocytoma, Childhood
- Cerebellar Ataxia
- Cerebellar Degeneration
- Cerebellar Diseases
- Cerebellar Neoplasms
- Cerebral Amyloid Angiopathy
- Cerebral Arterial Diseases
- Cerebral Astrocytoma, Childhood
- Cerebral Cavernous Malformation
- Cerebral Hemorrhage
- Cerebral Hemorrhage, Traumatic
- Cerebral Infarction
- Cerebral Palsy
- Cerebral Palsy Spastic Diplegic
- Cerebral Palsy Spastic Hemiplegic
- Cerebrospinal Fluid Leak
- Cerebrospinal Fluid Rhinorrhea
- Cerebrotendinous Xanthomatosis
- Cerebrovascular Disorders
- Cerebrovascular Trauma
- Ceroid Storage Disease
- Cervical Dystonia
- Cervical Intraepithelial Neoplasia
- Chagas Cardiomyopathy
- Chagas Disease
- Chalazion
- Chanarin-Dorfman Syndrome
- Chancre
- Chandler's Syndrome
- Channelopathies
- Charcot-Marie-Tooth Disease
- Charcot-Marie-Tooth Disease Type 1A
- Chediak-Higashi Syndrome
- Cheilitis
- Cherubism
- Chest Pain
- Cheyne-Stokes Respiration
- Chiari Malformation Type 2
- Chickenpox
- Chikungunya
- Child Behavior Disorders
- Child Development Disorders, Pervasive
- Child Nutrition Disorders
- CHILD Syndrome
- Childhood Disintegrative Disorder
- Childhood-Onset Schizophrenia
- Chills
- Chlamydia Infections
- Cholangiocarcinoma
- Cholangitis
- Cholangitis, Sclerosing
- Cholecystitis
- Cholecystitis, Acute
- Cholecystolithiasis
- Choledocholithiasis
- Cholelithiasis
- Cholera
- Cholestasis
- Cholestasis, Extrahepatic
- Cholestasis, Intrahepatic
- Cholestasis, Progressive Familial Intrahepatic 3
- Cholesteatoma
- Cholesterol Ester Storage Disease
- Choline Deficiency
- Chondrocalcinosis
- Chondrocalcinosis 2
- Chondrodysplasia Punctata
- Chondromalacia Patellae
- Chondrosarcoma
- Chordoma
- Chorea
- Chorea Minor
- Choreoacanthocytosis
- Chorioamnionitis
- Choriocarcinoma
- Chorioretinitis
- Choristoma
- Choroid Diseases
- Choroid Neoplasms
- Choroid Plexus Carcinoma
- Choroid Plexus Neoplasms
- Choroidal Neovascularization
- Choroideremia
- Choroiditis
- Chromophil Renal Cell Carcinoma
- Chromosomal Instability
- Chromosomal Triplication
- Chromosome 17p Deletion
- Chromosome 5q Deletion
- Chromosome Aberrations
- Chromosome Deletion
- Chromosome Disorders
- Chronic Active Epstein-Barr Virus Infection
- Chronic Berylliosis
- Chronic Disease
- Chronic Graft Versus Host Disease
- Chronic Granulomatous Disease
- Chronic Infantile Neurological Cutaneous Articular Syndrome
- Chronic Inflammatory Demyelinating Polyneuropathy
- Chronic Lymphocytic Leukemia
- Chronic Myeloid Leukemia
- Chronic Myelomonocytic Leukemia
- Chronic Myeloproliferative Disorders
- Chronic Neutrophilic Leukemia
- Chronic Periodontitis
- Chronobiology Disorders
- Churg-Strauss Syndrome
- Chylothorax
- Chylothorax, Congenital
- Cicatricial Pemphigoid
- Cicatrix
- Cicatrix, Hypertrophic
- Ciliary Motility Disorders
- Citrullinemia
- Citrullinemia Type I
- Classic Kaposi Sarcoma
- Clear Cell Renal Cell Carcinoma
- Cleft Lip
- Cleft Palate
- CLIPPERS
- Clostridium Difficile
- Clostridium Infections
- Clostridium Sordellii
- Clubfoot
- Cluster Headache
- COACH Syndrome
- Coagulation Protein Disorders
- Coal Worker's Pneumoconiosis
- Coats Disease
- Cocaine-Related Disorders
- Coccidioidomycosis
- Coccidiosis
- Cockayne Syndrome
- Cogan Syndrome
- Cognition Disorders
- Cold Agglutinin Disease
- Cold Contact Urticaria
- Colic
- Colitis
- Colitis, Collagenous
- Colitis, Ischemic
- Colitis, Lymphocytic
- Colitis, Microscopic
- Colitis, Ulcerative
- Collagen Diseases
- Collagenous Colitis
- Collecting Duct Carcinoma
- Colles' Fracture
- Coloboma
- Colonic Diseases
- Colonic Diseases, Functional
- Colonic Neoplasms
- Colonic Polyps
- Color Vision Defects
- Colorectal Neoplasms
- Colorectal Neoplasms, Hereditary Nonpolyposis
- Coma
- Combat Disorders
- Combined Malonic and Methylmalonic Aciduria
- Common Bile Duct Diseases
- Common Bile Duct Neoplasms
- Common Cold
- Common Variable Immunodeficiency
- Communicable Diseases, Emerging
- Communication Disorders
- Community-Acquired Infections
- Compartment Syndromes
- Complete Atrioventricular Canal
- Complex Regional Pain Syndromes
- Compulsive Behavior
- Conduct Disorder
- Condylomata Acuminata
- Cone-rod Dystrophy
- Cone-rod Dystrophy 2
- Confusion
- Congenital Abnormalities
- Congenital Adrenal Hyperplasia
- Congenital Amegakaryocytic Thrombocytopenia
- Congenital Antithrombin Deficiency
- Congenital Aplastic Anemia
- Congenital Central Hypoventilation Syndrome
- Congenital Cytomegalovirus
- Congenital Diaphragmatic Hernia
- Congenital Dyserythropoietic Anemia
- Congenital Dyserythropoietic Anemia Type 1
- Congenital Fiber Type Disproportion
- Congenital Heart Block
- Congenital Hemolytic Anemia
- Congenital Hepatic Fibrosis
- Congenital Herpes Simplex
- Congenital Hypothyroidism
- Congenital Muscular Dystrophy
- Congenital Muscular Dystrophy Type 1A
- Congenital Porphyria
- Congenital Torticollis
- Conjunctival Diseases
- Conjunctival Neoplasms
- Conjunctivitis
- Conjunctivitis, Allergic
- Conjunctivitis, Bacterial
- Conjunctivitis, Inclusion
- Conjunctivitis, Viral
- Conn's Syndrome
- Connective Tissue Diseases
- Conotruncal Heart Malformations
- Consciousness Disorders
- Constipation
- Constriction, Pathologic
- Contracture
- Contusions
- Convalescence
- Conversion Disorder
- Coproporphyria, Hereditary
- Corneal Diseases
- Corneal Dystrophies, Hereditary
- Corneal Edema
- Corneal Endothelial Cell Loss
- Corneal Neovascularization
- Corneal Opacity
- Corneal Ulcer
- Corneal Wavefront Aberration
- Coronary Aneurysm
- Coronary Artery Aneurysm
- Coronary Artery Disease
- Coronary Disease
- Coronary Occlusion
- Coronary Restenosis
- Coronary Stenosis
- Coronary Thrombosis
- Coronary Vasospasm
- Coronary Vessel Anomalies
- Corticobasal Degeneration
- Cough
- Cowden Syndrome
- Coxsackievirus Infections
- Craniocerebral Trauma
- Craniofacial Abnormalities
- Craniofacial Dysostosis
- Craniofacial Dystonia
- Craniofrontonasal Dysplasia
- Craniomandibular Disorders
- Craniopharyngioma
- Craniosynostoses
- CREST Syndrome
- Creutzfeldt-Jakob Disease
- Creutzfeldt-Jakob Syndrome
- Crigler-Najjar Syndrome
- Critical Illness
- Crohn Disease
- Cross Infection
- Croup
- Crouzon Syndrome
- Cryoglobulinemia
- Cryopyrin-Associated Periodic Syndromes
- Cryptococcosis
- Cryptogenic Organizing Pneumonia
- Cryptorchidism
- Cryptosporidiosis
- Cubital Tunnel Syndrome
- Cumulative Trauma Disorders
- Currarino Triad
- Cushing Syndrome
- Cutaneous Fistula
- Cutaneous Lupus Erythematosus
- Cutaneous Mastocytosis
- Cutaneous Sclerosis
- Cutaneous T-cell Lymphoma
- Cutis Laxa
- Cyanosis
- Cyclic Vomiting Syndrome
- Cyclothymic Disorder
- Cystadenocarcinoma
- Cystadenocarcinoma, Mucinous
- Cystadenocarcinoma, Serous
- Cystadenoma
- Cystadenoma, Mucinous
- Cystic Adenomatoid Malformation of Lung
- Cystic Adenomatoid Malformation of Lung, Congenital
- Cystic Fibrosis
- Cystic Hygroma
- Cysticercosis
- Cystinosis
- Cystinuria
- Cystitis
- Cystitis, Interstitial
- Cystocele
- Cystosarcoma Phyllodes
- Cysts
- Cytomegalic Inclusion Disease
- Cytomegalovirus Infections
- Cytomegalovirus Retinitis
- Dacryocystitis
- Dancing Eyes-dancing Feet Syndrome
- Darier Disease
- Deaf-Blind Disorders
- Deafness
- Death
- Death, Sudden
- Death, Sudden, Cardiac
- Decompression Sickness
- Deficiency Diseases
- Deglutition Disorders
- Dehydration
- Delayed Graft Function
- Delirium
- Delirium, Dementia, Amnestic, Cognitive Disorders
- Delusions
- Dementia
- Dementia, Multi-Infarct
- Dementia, Vascular
- Demyelinating Autoimmune Diseases, CNS
- Demyelinating Diseases
- Dendritic Cell, Monocyte, B Lymphocyte, and Natural Killer Lymphocyte Deficie...
- Dengue
- Dengue Fever
- Dengue Hemorrhagic Fever
- Dent Disease
- Dental Calculus
- Dental Caries
- Dental Occlusion, Traumatic
- Dental Plaque
- Dental Pulp Diseases
- Dental Pulp Exposure
- Dental Pulp Necrosis
- Dentin Sensitivity
- Denys-Drash Syndrome
- Depersonalization
- Depersonalization Disorder
- Depression
- Depression, Postpartum
- Depressive Disorder
- Depressive Disorder, Major
- Dermatitis
- Dermatitis Herpetiformis
- Dermatitis, Allergic Contact
- Dermatitis, Atopic
- Dermatitis, Contact
- Dermatitis, Exfoliative
- Dermatitis, Irritant
- Dermatitis, Occupational
- Dermatitis, Perioral
- Dermatitis, Photoallergic
- Dermatitis, Phototoxic
- Dermatitis, Seborrheic
- Dermatofibroma
- Dermatofibrosarcoma
- Dermatofibrosarcoma Protuberans
- Dermatomycoses
- Dermatomyositis
- Dermoid Cyst
- Desmoid Tumor
- Desmoplastic Small Round Cell Tumor
- Developmental Disabilities
- Devic Disease
- Dextrocardia
- Di Guglielmo's Syndrome
- Diabetes Complications
- Diabetes Insipidus
- Diabetes Insipidus, Nephrogenic
- Diabetes Insipidus, Neurogenic
- Diabetes Mellitus
- Diabetes Mellitus, Experimental
- Diabetes Mellitus, Type 1
- Diabetes Mellitus, Type 2
- Diabetes, Gestational
- Diabetic Angiopathies
- Diabetic Cardiomyopathies
- Diabetic Foot
- Diabetic Ketoacidosis
- Diabetic Nephropathies
- Diabetic Neuropathies
- Diabetic Retinopathy
- Diamond-Blackfan Anemia
- Diaper Rash
- Diaphragmatic Eventration
- Diaphyseal Medullary Stenosis With Malignant Fibrous Histiocytoma
- Diarrhea
- Diarrhea, Infantile
- DICER1-related Pleuropulmonary Blastoma Cancer Predisposition Syndrome
- Dientamoebiasis
- Diffuse Astrocytoma
- Diffuse Cerebral Sclerosis of Schilder
- Diffuse Gastric Cancer
- Diffuse Scleroderma
- Diffuse Systemic Sclerosis
- DiGeorge Syndrome
- Digestive System Abnormalities
- Digestive System Diseases
- Digestive System Fistula
- Digestive System Neoplasms
- Dihydroxyadeninuria
- Dilatation, Pathologic
- Dilated Cardiomyopathy
- Dilated Cardiomyopathy With Hypergonadotropic Hypogonadism
- Dipetalonema Infections
- Diphtheria
- Diplopia
- Discitis
- Disease Progression
- Disease Susceptibility
- Diseases in Twins
- Dislocations
- Disorders of Excessive Somnolence
- Disorders of Sex Development
- Disseminated Intravascular Coagulation
- Dissociative Disorders
- Distal Myopathies
- Diverticulitis
- Diverticulitis, Colonic
- Diverticulosis, Colonic
- Diverticulum
- Diverticulum, Colon
- Dizziness
- DNA Virus Infections
- Dominant Ichthyosis Vulgaris
- Donnai-Barrow Syndrome
- Dopamine Beta Hydroxylase Deficiency
- Double Outlet Right Ventricle
- Down Syndrome
- Dravet Syndrome
- Drinking Behavior
- Drowning
- Drug Hypersensitivity
- Drug Toxicity
- Drug-Induced Liver Injury
- Dry Eye Syndromes
- Dry Socket
- Dubin-Johnson Syndrome
- Duchenne Muscular Dystrophy
- Ductus Arteriosus, Patent
- Duhring Brocq Disease
- Dumping Syndrome
- Duodenal Diseases
- Duodenal Neoplasms
- Duodenal Obstruction
- Duodenal Ulcer
- Duodenitis
- Duodenogastric Reflux
- Dupuytren Contracture
- Dwarfism
- Dwarfism, Pituitary
- Dysarthria
- Dysautonomia, Familial
- Dysentery
- Dysentery, Amebic
- Dysentery, Bacillary
- Dysequilibrium Syndrome
- Dysferlinopathy
- Dysgerminoma
- Dysgeusia
- Dyskeratosis Congenita
- Dyskinesia, Drug-Induced
- Dyskinesias
- Dyslexia
- Dyslexia, Acquired
- Dyslipidemias
- Dysmenorrhea
- Dyspareunia
- Dyspepsia
- Dysphonia
- Dysplastic Nevus Syndrome
- Dyspnea
- Dyssomnias
- Dysthymic Disorder
- Dystocia
- Dystonia
- Dystonia 11
- Dystonia 12
- Dystonic Disorders
- Dystrophic Epidermolysis Bullosa
- Dystrophinopathy
- Dysuria
- Eales Disease
- Ear Diseases
- Eastern Equine Encephalitis
- Eating Disorders
- Ebola Virus Disease
- Ebstein Anomaly
- Eccentrochondrodysplasia
- Ecchymosis
- Echinococcosis
- Echinococcosis, Hepatic
- Eclampsia
- Ectodermal Dysplasia
- Ectodermal Dysplasia 1, Anhidrotic
- Ectopic Pregnancy
- Ectropion
- Eczema
- Eczema, Dyshidrotic
- Edema
- Edema, Cardiac
- Egg Hypersensitivity
- Ehlers-Danlos Syndrome
- Eisenmenger Complex
- Eisenmenger Syndrome
- Elective Mutism
- Elephantiasis
- Elephantiasis, Filarial
- Elliptocytosis, Hereditary
- Ellis-Van Creveld Syndrome
- Emaciation
- Embolism
- Embolism and Thrombosis
- Embolism, Air
- Embolism, Cholesterol
- Embolism, Fat
- Embolism, Paradoxical
- Embryo Loss
- Embryonal Carcinoma
- Emergencies
- Emphysema
- Empyema
- Empyema, Pleural
- Encephalitis
- Encephalitis, Herpes Simplex
- Encephalitis, Japanese
- Encephalitis, Tick-Borne
- Encephalocele
- Encephalomalacia
- Encephalomyelitis
- Encephalomyelitis, Acute Disseminated
- Encephalomyelitis, Eastern Equine
- Encephalomyelitis, Equine
- Encephalomyelitis, Venezuelan Equine
- Encephalomyelitis, Western Equine
- Encopresis
- End Stage Liver Disease
- Endemic Kaposi Sarcoma
- Endocardial Cushion Defects
- Endocarditis
- Endocarditis, Bacterial
- Endocrine Gland Neoplasms
- Endocrine System Diseases
- Endodermal Sinus Tumor
- Endoleak
- Endolymphatic Hydrops
- Endolymphatic Sac Tumor
- Endometrial Hyperplasia
- Endometrial Neoplasms
- Endometrial Stromal Sarcoma
- Endometrial Stromal Tumors
- Endometriosis
- Endometritis
- Endomyocardial Fibrosis
- Endophthalmitis
- Endotoxemia
- Enlarged Vestibular Aqueduct Syndrome
- Enophthalmos
- Enteritis
- Enterobacteriaceae Infections
- Enterocolitis
- Enterocolitis, Necrotizing
- Enterocolitis, Neutropenic
- Enterocolitis, Pseudomembranous
- Enteropathy-Associated T-Cell Lymphoma
- Enterovirus Infections
- Entropion
- Enuresis
- Environmental Illness
- Eosinophilia
- Eosinophilia-Myalgia Syndrome
- Eosinophilic Enteropathy
- Eosinophilic Esophagitis
- Eosinophilic Fasciitis
- Ependymoblastoma
- Ependymoma
- Epidermal Cyst
- Epidermal Necrolysis, Toxic
- Epidermodysplasia Verruciformis
- Epidermolysis Bullosa
- Epidermolysis Bullosa Acquisita
- Epidermolysis Bullosa Dystrophica
- Epidermolysis Bullosa Simplex
- Epidermolysis Bullosa, Junctional
- Epilepsies, Myoclonic
- Epilepsies, Partial
- Epilepsy
- Epilepsy Juvenile Absence
- Epilepsy, Absence
- Epilepsy, Complex Partial
- Epilepsy, Frontal Lobe
- Epilepsy, Generalized
- Epilepsy, Partial, Motor
- Epilepsy, Post-Traumatic
- Epilepsy, Reflex
- Epilepsy, Rolandic
- Epilepsy, Temporal Lobe
- Epilepsy, Tonic-Clonic
- Epileptic Encephalopathy Lennox-Gastaut Type
- Epiretinal Membrane
- Episodic Ataxia
- Episodic Ataxia With Nystagmus
- Epispadias
- Epistaxis
- Epithelial-myoepithelial Carcinoma
- Epithelioid Sarcoma
- Epstein-Barr Virus Infections
- Equinus Deformity
- Erdheim-Chester Disease
- Erectile Dysfunction
- Eructation
- Erysipelas
- Erythema
- Erythema Chronicum Migrans
- Erythema Infectiosum
- Erythema Nodosum
- Erythroblastosis, Fetal
- Erythromelalgia
- Erythroplakia
- Erythroplasia
- Erythropoietic Protoporphyria
- Escherichia coli Infections
- Esophageal Achalasia
- Esophageal and Gastric Varices
- Esophageal Atresia
- Esophageal Cancer
- Esophageal Diseases
- Esophageal Fistula
- Esophageal Motility Disorders
- Esophageal Neoplasms
- Esophageal Perforation
- Esophageal Spasm, Diffuse
- Esophageal Stenosis
- Esophageal Varices
- Esophagitis
- Esophagitis, Peptic
- Esotropia
- Essential Thrombocythemia
- Essential Tremor
- Esthesioneuroblastoma
- Esthesioneuroblastoma, Olfactory
- Ethmoid Sinusitis
- Eunuchism
- Euthyroid Sick Syndromes
- Evans Syndrome
- Ewing's Family of Tumors
- Ewing's Sarcoma
- Exanthema
- Exercise Induced Anaphylaxis
- Exfoliation Syndrome
- Exfoliative Dermatitis
- Exocrine Pancreatic Insufficiency
- Exophthalmos
- Exostoses
- Exostoses, Multiple Hereditary
- Exotropia
- Exstrophy of the Bladder
- Extensively Drug-Resistant Tuberculosis
- Extracranial Germ Cell Tumor, Childhood
- Extragonadal Germ Cell Tumor
- Extravasation of Diagnostic and Therapeutic Materials
- Eye Abnormalities
- Eye Burns
- Eye Diseases
- Eye Diseases, Hereditary
- Eye Foreign Bodies
- Eye Infections
- Eye Infections, Bacterial
- Eye Infections, Fungal
- Eye Injuries
- Eye Injuries, Penetrating
- Eye Manifestations
- Eye Neoplasms
- Eye Pain
- Eyelid Diseases
- Fabry Disease
- Facial Dermatoses
- Facial Hemiatrophy
- Facial Injuries
- Facial Neoplasms
- Facial Nerve Diseases
- Facial Neuralgia
- Facial Pain
- Facial Paralysis
- Facies
- Facioscapulohumeral Muscular Dystrophy
- Factor VII Deficiency
- Factor X Deficiency
- Factor XI Deficiency
- Factor XIII Deficiency
- Failed Back Surgery Syndrome
- Failure to Thrive
- Fallopian Tube Cancer
- Fallopian Tube Neoplasms
- Familial Adenomatous Polyposis
- Familial Cold Autoinflammatory Syndrome
- Familial Colorectal Cancer
- Familial Dysautonomia
- Familial Encephalopathy With Neuroserpin Inclusion Bodies
- Familial Exudative Vitreoretinopathy
- Familial HDL Deficiency
- Familial Hemiplegic Migraine
- Familial Hemiplegic Migraine Type 1
- Familial Hyperinsulinism
- Familial Hypertrophic Cardiomyopathy
- Familial Isolated Hyperparathyroidism
- Familial Isolated Pituitary Adenoma
- Familial Mediterranean Fever
- Familial Prostate Cancer
- Familial Thoracic Aortic Aneurysm and Dissection
- Familial Transthyretin Amyloidosis
- Fanconi Anemia
- Fanconi Bickel Syndrome
- Fanconi Renotubular Syndrome
- Fanconi Syndrome
- Fasciitis
- Fasciitis, Necrotizing
- Fasciitis, Plantar
- Fatal Familial Insomnia
- Fatigue
- Fatigue Syndrome, Chronic
- Fatty Liver
- Fatty Liver, Alcoholic
- Favism
- Fecal Impaction
- Fecal Incontinence
- Feeding and Eating Disorders of Childhood
- Felty's Syndrome
- Female Athlete Triad Syndrome
- Femoracetabular Impingement
- Femoral Fractures
- Femoral Neck Fractures
- Femoral Neuropathy
- Femur Head Necrosis
- Fetal Alcohol Spectrum Disorders
- Fetal Alcohol Syndrome
- Fetal Death
- Fetal Diseases
- Fetal Distress
- Fetal Edema
- Fetal Growth Retardation
- Fetal Hypoxia
- Fetal Macrosomia
- Fetal Membranes, Premature Rupture
- Fetofetal Transfusion
- Fetomaternal Transfusion
- Fever
- Fever of Unknown Origin
- Fibrinogen Deficiency, Congenital
- Fibroadenoma
- Fibrocystic Breast Disease
- Fibroma
- Fibromatosis, Aggressive
- Fibromyalgia
- Fibrosarcoma
- Fibrosis
- Fibrous Dysplasia
- Fibrous Dysplasia of Bone
- Fibrous Dysplasia, Polyostotic
- Filariasis
- Finger Injuries
- Firesetting Behavior
- Fissure in Ano
- Fistula
- Flail Chest
- Flank Pain
- Flatfoot
- Flatulence
- Flavivirus Infections
- Fluoride Poisoning
- Fluorosis, Dental
- Flushing
- Focal Dermal Hypoplasia
- Focal Dystonia
- Focal Facial Dermal Dysplasia
- Focal Infection
- Focal Nodular Hyperplasia
- Folic Acid Deficiency
- Follicular Lymphoma
- Folliculitis
- Food Habits
- Food Hypersensitivity
- Foot Deformities
- Foot Deformities, Congenital
- Foot Diseases
- Foot Injuries
- Foot Ulcer
- Foot-and-Mouth Disease
- Foramen Ovale, Patent
- Forearm Injuries
- Foreign Bodies
- Foreign-Body Reaction
- Formaldehyde Poisoning
- Fournier Gangrene
- Fractures, Bone
- Fractures, Closed
- Fractures, Comminuted
- Fractures, Compression
- Fractures, Malunited
- Fractures, Open
- Fractures, Spontaneous
- Fractures, Stress
- Fractures, Ununited
- Fragile X Syndrome
- Frambesia Tropica
- Fraser Syndrome
- Frasier Syndrome
- Freeman Sheldon Syndrome
- Frey's Syndrome
- Friedreich Ataxia
- Frontotemporal Dementia
- Frontotemporal Lobar Degeneration
- Fructose Intolerance
- Fryns Syndrome
- Fuchs' Endothelial Dystrophy
- Fucosidosis
- Fungemia
- Funnel Chest
- Furcation Defects
- Furunculosis
- Gagging
- Gait Apraxia
- Gait Disorders, Neurologic
- Galactorrhea
- Galactorrhoea-Hyperprolactinaemia
- Galactose Epimerase Deficiency
- Galactosemias
- Galactosialidosis
- Gall Bladder Cancer
- Gallbladder Diseases
- Gallbladder Neoplasms
- Gallstones
- Gambling
- Ganglioglioma
- Ganglion Cysts
- Ganglioneuroblastoma
- Gangliosidoses
- Gangliosidoses, GM2
- Gangliosidosis, GM1
- Gangrene
- Gardner Syndrome
- Gastric Antral Vascular Ectasia
- Gastric Fistula
- Gastric Lymphoma
- Gastric Outlet Obstruction
- Gastrinoma
- Gastritis
- Gastritis, Atrophic
- Gastritis, Hypertrophic
- Gastro-enteropancreatic Neuroendocrine Tumor
- Gastroenteritis
- Gastroesophageal Reflux
- Gastrointestinal Diseases
- Gastrointestinal Hemorrhage
- Gastrointestinal Neoplasms
- Gastrointestinal Stromal Tumors
- Gastroparesis
- Gastroschisis
- Gaucher Disease
- Gaucher Disease Type 1
- Gaucher Disease Type 2
- Gaucher Disease Type 3
- Gelatinous Ascites
- Genetic Diseases, Inborn
- Genetic Diseases, X-Linked
- Genetic Predisposition to Disease
- Genital Diseases, Female
- Genital Diseases, Male
- Genital Dwarfism
- Genital Neoplasms, Female
- Genital Neoplasms, Male
- Genomic Instability
- Genu Valgum
- Genu Varum
- Geographic Atrophy
- Geographic Tongue
- Germinoma
- Gestational Trophoblastic Neoplasms
- Gestational Trophoblastic Tumor
- Giant Axonal Neuropathy
- Giant Cell Arteritis
- Giant Cell Myocarditis
- Giant Cell Tumor of Bone
- Giant Cell Tumors
- Giant Lymph Node Hyperplasia
- Giant Papillary Conjunctivitis
- Giardiasis
- Gigantism
- Gigantomastia
- Gingival Diseases
- Gingival Hyperplasia
- Gingival Overgrowth
- Gingival Recession
- Gingivitis
- Gitelman Syndrome
- Glanzmann Thrombasthenia
- Glaucoma
- Glaucoma 3 Primary Infantile B
- Glaucoma, Angle-Closure
- Glaucoma, Congenital
- Glaucoma, Neovascular
- Glaucoma, Open-Angle
- Glioblastoma
- Glioma
- Glioma, Subependymal
- Gliomatosis Cerebri
- Gliosarcoma
- Gliosis
- Glomerulonephritis
- Glomerulonephritis, IGA
- Glomerulonephritis, Membranoproliferative
- Glomerulonephritis, Membranous
- Glomerulosclerosis, Focal Segmental
- Glossitis, Benign Migratory
- Glucagonoma
- Glucagonoma Syndrome
- Glucocorticoid-remediable Aldosteronism
- Glucose Intolerance
- Glucose Metabolism Disorders
- Glucose-6-phosphate Dehydrogenase Deficiency
- Glucosephosphate Dehydrogenase Deficiency
- Glycogen Storage Disease
- Glycogen Storage Disease Type 2
- Glycogen Storage Disease Type 3
- Glycogen Storage Disease Type 4
- Glycogen Storage Disease Type II
- Glycogen Storage Disease Type III
- Glycogen Storage Disease Type IV
- Glycogen Storage Disease Type VII
- Glycosuria, Renal
- GM1 Gangliosidosis
- Goiter
- Goiter, Nodular
- Gonadal Disorders
- Gonadal Dysgenesis
- Gonorrhea
- Gout
- Graft Occlusion, Vascular
- Graft vs Host Disease
- Gram-Negative Bacterial Infections
- Gram-Positive Bacterial Infections
- Granulocytopenia
- Granuloma
- Granuloma Annulare
- Granuloma, Laryngeal
- Granuloma, Plasma Cell
- Granulomatous Disease, Chronic
- Granulosa Cell Tumor
- Granulosa Cell Tumor of the Ovary
- Graves Disease
- Graves Ophthalmopathy
- Gray Platelet Syndrome
- Griscelli Syndrome
- Growth Disorders
- Growth Hormone Deficiency
- Growth Hormone-Secreting Pituitary Adenoma
- Guillain-Barre Syndrome
- Gynatresia
- Gynecomastia
- Gyrate Atrophy
- Gyrate Atrophy of Choroid and Retina
- Habits
- Haemophilus Infections
- Haemophilus Influenzae
- Hailey-Hailey Disease
- Hairy Cell Leukemia
- Halitosis
- Hallucinations
- Hallux Limitus
- Hallux Rigidus
- Hallux Valgus
- Hallux Varus
- Hamartoma
- Hamartoma Syndrome, Multiple
- Hammer Toe Syndrome
- Hand Deformities
- Hand Deformities, Congenital
- Hand Dermatoses
- Hand Injuries
- Hand, Foot and Mouth Disease
- Hand-Schuller-Christian Disease
- Hansen's Disease
- Hantavirus Infections
- Hantavirus Pulmonary Syndrome
- Hashimoto Disease
- Head and Neck Neoplasms
- Head Injuries, Closed
- Head Injuries, Penetrating
- Headache
- Headache Disorders
- Headache Disorders, Primary
- Headache Disorders, Secondary
- Hearing Disorders
- Hearing Loss
- Hearing Loss, Bilateral
- Hearing Loss, Central
- Hearing Loss, Conductive
- Hearing Loss, Mixed Conductive-Sensorineural
- Hearing Loss, Noise-Induced
- Hearing Loss, Sensorineural
- Hearing Loss, Sudden
- Hearing Loss, Unilateral
- Heart Aneurysm
- Heart Arrest
- Heart Block
- Heart Defects, Congenital
- Heart Diseases
- Heart Failure
- Heart Failure, Diastolic
- Heart Failure, Systolic
- Heart Injuries
- Heart Murmurs
- Heart Neoplasms
- Heart Septal Defects
- Heart Septal Defects, Atrial
- Heart Septal Defects, Ventricular
- Heart Tumor
- Heart Valve Diseases
- Heartburn
- Heat Exhaustion
- Heat Stress Disorders
- Heat Stroke
- Heavy Metal Poisoning
- Heel Spur
- Helicobacter Infections
- HELLP Syndrome
- Helminthiasis
- Hemangioblastoma
- Hemangioendothelioma
- Hemangioendothelioma, Epithelioid
- Hemangioma
- Hemangioma, Capillary
- Hemangioma, Cavernous
- Hemangioma, Cavernous, Central Nervous System
- Hemangiopericytoma
- Hemangiosarcoma
- Hemarthrosis
- Hematemesis
- Hematologic Diseases
- Hematologic Neoplasms
- Hematoma
- Hematoma, Subdural
- Hematoma, Subdural, Chronic
- Hematoma, Subdural, Intracranial
- Hematuria
- Hemianopsia
- Hemifacial Microsomia
- Hemifacial Spasm
- Hemiplegia
- Hemiplegic Migraine
- Hemochromatosis
- Hemoglobin C Disease
- Hemoglobin SC Disease
- Hemoglobinopathies
- Hemoglobinuria
- Hemoglobinuria, Paroxysmal
- Hemolysis
- Hemolytic-Uremic Syndrome
- Hemoperitoneum
- Hemophagocytic Lymphohistiocytosis
- Hemophilia
- Hemophilia A
- Hemophilia A, Acquired
- Hemophilia A, Congenital
- Hemophilia B
- Hemophilic Arthropathy
- Hemopneumothorax
- Hemoptysis
- Hemorrhage
- Hemorrhagic Disorders
- Hemorrhagic Fever
- Hemorrhagic Fever with Renal Syndrome
- Hemorrhagic Fever, Crimean
- Hemorrhagic Fever, Ebola
- Hemorrhagic Fevers, Viral
- Hemorrhoids
- Hemosiderosis
- Hemospermia
- Hemostatic Disorders
- Hemothorax
- Henoch-Schonlein Purpura
- Hepadnaviridae Infections
- Heparin-induced Thrombocytopenia
- Hepatic Encephalopathy
- Hepatic Insufficiency
- Hepatic Veno-Occlusive Disease
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis B, Chronic
- Hepatitis C
- Hepatitis C, Chronic
- Hepatitis D
- Hepatitis D, Chronic
- Hepatitis E
- Hepatitis, Alcoholic
- Hepatitis, Autoimmune
- Hepatitis, Chronic
- Hepatitis, Viral, Human
- Hepatoblastoma
- Hepatocellular Carcinoma (fibrolamellar Variant)
- Hepatocellular Carcinoma, Childhood
- Hepatolenticular Degeneration
- Hepatomegaly
- Hepatopulmonary Syndrome
- Hepatorenal Syndrome
- Hereditary Amyloidosis
- Hereditary Angioedema
- Hereditary Angioedema Types I and II
- Hereditary Ataxia
- Hereditary Autoinflammatory Diseases
- Hereditary Central Nervous System Demyelinating Diseases
- Hereditary Coproporphyria
- Hereditary Elliptocytosis
- Hereditary Fructose Intolerance
- Hereditary Hemorrhagic Telangiectasia
- Hereditary Hyperuricemia
- Hereditary Multiple Osteochondromas
- Hereditary Neuropathy With Liability to Pressure Palsy
- Hereditary Pancreatitis
- Hereditary Sensory and Autonomic Neuropathies
- Hereditary Sensory and Motor Neuropathy
- Hereditary Spastic Paraplegia
- Hereditary Spherocytosis
- Heredodegenerative Disorders, Nervous System
- Hermanski-Pudlak Syndrome
- Hermansky-Pudlak Syndrome
- Hernia
- Hernia, Abdominal
- Hernia, Diaphragmatic
- Hernia, Femoral
- Hernia, Hiatal
- Hernia, Inguinal
- Hernia, Umbilical
- Hernia, Ventral
- Heroin Dependence
- Herpangina
- Herpes Genitalis
- Herpes Labialis
- Herpes Simplex
- Herpes Simplex Encephalitis
- Herpes Zoster
- Herpes Zoster Ophthalmicus
- Herpesviridae Infections
- Herpetic Keratitis
- Heterotaxy
- Hiccup
- Hidradenitis
- Hidradenitis Suppurativa
- Hip Dislocation
- Hip Dislocation, Congenital
- Hip Fractures
- Hip Injuries
- Hirschsprung Disease
- Hirsutism
- His Bundle Tachycardia
- Histiocytic Necrotizing Lymphadenitis
- Histiocytoma
- Histiocytoma, Benign Fibrous
- Histiocytoma, Malignant Fibrous
- Histiocytosis
- Histiocytosis, Langerhans-Cell
- Histoplasmosis
- HIV Enteropathy
- HIV Infections
- HIV Seropositivity
- HIV Wasting Syndrome
- HIV-Associated Lipodystrophy Syndrome
- Hoarseness
- Hodgkin Disease
- Hodgkin Lymphoma
- Hodgkin Lymphoma, Childhood
- Holoprosencephaly
- Homocysteinemia
- Homocystinuria
- Homologous Wasting Disease
- Hookworm Infections
- Hordeolum
- Hot Flashes
- Hoyeraal Hreidarsson Syndrome
- HTLV-1 Associated Myelopathy/tropical Spastic Paraparesis
- HTLV-I Infections
- HTLV-II Infections
- Human T-cell Leukemia Virus Type 1
- Human T-cell Leukemia Virus Type 2
- Humeral Fractures
- Hunter-McAlpine Syndrome
- Huntington Disease
- Hurthle Cell Thyroid Cancer
- Hutchinson's Melanotic Freckle
- Hyaline Membrane Disease
- Hydatidiform Mole
- Hydatidosis
- Hydrarthrosis
- Hydrocephalus
- Hydrocephalus, Normal Pressure
- Hydronephrosis
- Hydrophthalmos
- Hydrops Fetalis
- Hydrothorax
- Hyper IgE Syndrome
- Hyper-IgD Syndrome
- Hyper-IgM Immunodeficiency Syndrome
- Hyper-IgM Immunodeficiency Syndrome, Type 1
- Hyperacusis
- Hyperadrenalism
- Hyperaldosteronism
- Hyperalgesia
- Hyperammonemia
- Hyperandrogenism
- Hyperargininemia
- Hyperbilirubinemia
- Hyperbilirubinemia, Neonatal
- Hypercalcemia
- Hypercalciuria
- Hypercapnia
- Hypercholesterolemia
- Hyperemesis Gravidarum
- Hyperemia
- Hypereosinophilic Syndrome
- Hyperglycemia
- Hyperhidrosis
- Hyperhomocysteinemia
- Hyperinsulinism
- Hyperkalemia
- Hyperkeratosis, Epidermolytic
- Hyperkinesis
- Hyperlipidemia Type 3
- Hyperlipidemia, Familial Combined
- Hyperlipidemias
- Hyperlipoproteinemia Type 1
- Hyperlipoproteinemia Type 2
- Hyperlipoproteinemia Type 5
- Hyperlipoproteinemia Type I
- Hyperlipoproteinemia Type II
- Hyperlipoproteinemia Type III
- Hyperlipoproteinemia Type IV
- Hyperlipoproteinemia Type V
- Hyperlipoproteinemias
- Hypernatremia
- Hyperopia
- Hyperostosis
- Hyperoxaluria
- Hyperoxaluria, Primary
- Hyperoxia
- Hyperparathyroidism
- Hyperparathyroidism, Primary
- Hyperparathyroidism, Secondary
- Hyperphagia
- Hyperphosphatemia
- Hyperpigmentation
- Hyperplasia
- Hyperprolactinemia
- Hypersensitivity
- Hypersensitivity Vasculitis
- Hypersensitivity, Delayed
- Hypersensitivity, Immediate
- Hypersomnolence, Idiopathic
- Hypersplenism
- Hypertelorism
- Hypertension
- Hypertension, Malignant
- Hypertension, Portal
- Hypertension, Pregnancy-Induced
- Hypertension, Pulmonary
- Hypertension, Renal
- Hypertension, Renovascular
- Hypertensive Encephalopathy
- Hypertensive Retinopathy
- Hyperthyroidism
- Hypertrichosis
- Hypertriglyceridemia
- Hypertrophy
- Hypertrophy, Left Ventricular
- Hypertrophy, Right Ventricular
- Hyperuricemia
- Hyperventilation
- Hypesthesia
- Hypoadrenalism
- Hypoalbuminemia
- Hypoaldosteronism
- Hypoalphalipoproteinemias
- Hypobetalipoproteinemias
- Hypocalcemia
- Hypochondriasis
- Hypochondroplasia
- Hypocomplementemic Urticarial Vasculitis
- Hypoglycemia
- Hypogonadism
- Hypohidrotic Ectodermal Dysplasia
- Hypokalemia
- Hypokalemic Periodic Paralysis
- Hypokinesia
- Hypolipoproteinemias
- Hypomagnesemia Primary
- Hypomelanotic Disorder
- Hyponatremia
- Hypoparathyroidism
- Hypopharyngeal Cancer
- Hypopharyngeal Neoplasms
- Hypophosphatasia
- Hypophosphatemia
- Hypophosphatemia, Familial
- Hypophosphatemic Rickets
- Hypophosphatemic Rickets, X-Linked Dominant
- Hypopigmentation
- Hypopituitarism
- Hypoplastic Left Heart Syndrome
- Hypoplastic Right Heart Syndrome
- Hypospadias
- Hypotension
- Hypotension, Orthostatic
- Hypothermia
- Hypothyroidism
- Hypotrichosis
- Hypoventilation
- Hypovolemia
- Hypoxia, Brain
- Hypoxia-Ischemia, Brain
- Hysteria
- I Cell Disease
- Iatrogenic Disease
- IBIDS Syndrome
- Ichthyosiform Erythroderma, Congenital
- Ichthyosis
- Ichthyosis Linearis Circumflexa
- Ichthyosis Vulgaris
- Ichthyosis, Lamellar
- Ichthyosis, X-Linked
- Idiopathic Adolescent Scoliosis
- Idiopathic Interstitial Pneumonias
- Idiopathic Myopathy
- Idiopathic Pulmonary Fibrosis
- Idiopathic Pulmonary Hemosiderosis
- Idiopathic Pulmonary Hypertension
- Idiopathic Thrombocytopenic Purpura
- IgA Deficiency
- IgG Deficiency
- Ileal Diseases
- Ileal Neoplasms
- Ileitis
- Ileus
- Iliac Aneurysm
- Iliotibial Band Syndrome
- Illusions
- Immune Reconstitution Inflammatory Syndrome
- Immune Thrombocytopenia
- Immunoblastic Lymphadenopathy
- Immunodeficiency With Hyper IgM Type 1
- Immunologic Deficiency Syndromes
- Immunoproliferative Disorders
- Impetigo
- Impulse Control Disorders
- Impulsive Behavior
- Inappropriate ADH Syndrome
- Inborn Amino Acid Metabolism Disorder
- Inclusion Body Myopathy 2
- Inclusion Body Myositis
- Inclusion Conjunctivitis
- Incontinentia Pigmenti
- Indolent B Cell Lymphoma
- Infant Nutrition Disorders
- Infant, Newborn, Diseases
- Infant, Premature, Diseases
- Infantile Apnea
- Infantile Scoliosis
- Infantile-onset Ascending Hereditary Spastic Paralysis
- Infarction
- Infarction, Middle Cerebral Artery
- Infarction, Posterior Cerebral Artery
- Infectious Arthritis
- Infectious Mononucleosis
- Infective Endocarditis
- Inferior Wall Myocardial Infarction
- Infertility
- Infertility, Female
- Infertility, Male
- Inflammation
- Inflammatory Bowel Diseases
- Inflammatory Breast Cancer
- Inflammatory Breast Neoplasms
- Inflammatory Myofibroblastic Tumor
- Influenza in Birds
- Influenza, Human
- Infratentorial Neoplasms
- Insect Bites and Stings
- Insulin Resistance
- Insulin-like Growth Factor I Deficiency
- Insulinoma
- Intermittent Claudication
- Intertrigo
- Intervertebral Disk Degeneration
- Intervertebral Disk Displacement
- Intestinal Atresia
- Intestinal Diseases
- Intestinal Diseases, Parasitic
- Intestinal Fistula
- Intestinal Neoplasms
- Intestinal Obstruction
- Intestinal Perforation
- Intestinal Polyposis
- Intestinal Polyps
- Intestinal Pseudo-Obstruction
- Intestinal Volvulus
- Intra-Articular Fractures
- Intracranial Aneurysm
- Intracranial Arterial Diseases
- Intracranial Arteriosclerosis
- Intracranial Arteriovenous Malformations
- Intracranial Embolism
- Intracranial Embolism and Thrombosis
- Intracranial Hemorrhage, Hypertensive
- Intracranial Hemorrhage, Traumatic
- Intracranial Hemorrhages
- Intracranial Hypertension
- Intracranial Hypotension
- Intracranial Thrombosis
- Intrahepatic Cholangiocarcinoma
- Intrahepatic Cholestasis of Pregnancy
- Intraocular Melanoma
- Intraoperative Awareness
- Intraoperative Complications
- Intrauterine Infections
- Intravenous Leiomyomatosis
- Intussusception
- Invasive Pulmonary Aspergillosis
- Iridocorneal Endothelial Syndrome
- Iridocyclitis
- Iris Neoplasms
- Iritis
- Iron Metabolism Disorders
- Iron Overload
- Irritable Bowel Syndrome
- Isaacs Syndrome
- Ischemia
- Ischemic Attack, Transient
- Isolated ACTH Deficiency
- Isolated Noncompaction of the Ventricular Myocardium
- Japanese Encephalitis
- Jaundice
- Jaundice, Neonatal
- Jaundice, Obstructive
- Jaw, Edentulous
- Jaw, Edentulous, Partially
- Jejunal Neoplasms
- Jet Lag Syndrome
- Jeune Syndrome
- Job's Syndrome
- Joint Deformities, Acquired
- Joint Diseases
- Joint Instability
- Joint Loose Bodies
- Joubert Syndrome
- Joubert Syndrome With Oculorenal Anomalies
- Junctional Epidermolysis Bullosa
- Juvenile Dermatomyositis
- Juvenile Huntington Disease
- Juvenile Myelomonocytic Leukemia
- Juvenile Myoclonic Epilepsy
- Juvenile Osteoporosis
- Juvenile Retinoschisis
- Kabuki Syndrome
- Kallmann Syndrome
- Kallmann Syndrome 3
- Kaposi Varicelliform Eruption
- Kaposiform Hemangioendothelioma
- Kartagener Syndrome
- Kashin-Beck Disease
- Kawasaki Syndrome
- Keloid
- Kennedy Disease
- Keratitis
- Keratitis, Herpetic
- Keratoacanthoma
- Keratoconjunctivitis
- Keratoconjunctivitis Sicca
- Keratoconus
- Keratoderma, Palmoplantar
- Keratoderma, Palmoplantar, Diffuse
- Keratomalacia
- Keratosis
- Keratosis, Actinic
- Keratosis, Seborrheic
- Kernicterus
- Ketosis
- Kidney Calculi
- Kidney Cancer
- Kidney Cortex Necrosis
- Kidney Diseases
- Kidney Diseases, Cystic
- Kidney Failure, Chronic
- Kidney Neoplasms
- Kidney Tubular Necrosis, Acute
- Kikuchi Disease
- Klatskin's Tumor
- Klebsiella
- Klebsiella Infections
- Klinefelter Syndrome
- Klippel-Trenaunay Syndrome
- Klippel-Trenaunay-Weber Syndrome
- Knee Dislocation
- Knee Injuries
- Korsakoff Syndrome
- Krabbe Leukodystrophy
- Krukenberg Carcinoma
- Krukenberg Tumor
- KSHV Inflammatory Cytokine Syndrome
- Kwashiorkor
- Kyphosis
- Labor Pain
- Labyrinth Diseases
- Labyrinthitis
- Lacerations
- Lacrimal Apparatus Diseases
- Lacrimal Duct Obstruction
- Lactate Dehydrogenase A Deficiency
- Lactose Intolerance
- Lafora Disease
- Lambert-Eaton Myasthenic Syndrome
- Lamellar Ichthyosis
- Landau-Kleffner Syndrome
- Langerhans Cell Histiocytosis
- Language Development Disorders
- Language Disorders
- Large B Cell Diffuse Lymphoma
- Large Granular Lymphocyte Leukemia
- Laron Syndrome
- Laryngeal Cancer
- Laryngeal Cleft
- Laryngeal Diseases
- Laryngeal Edema
- Laryngeal Neoplasms
- Laryngeal Papillomatosis
- Laryngismus
- Laryngitis
- Laryngomalacia
- Laryngostenosis
- Lassa Fever
- Lassueur-Graham-Little Syndrome
- Latent Tuberculosis
- Latex Hypersensitivity
- Laurence-Moon Syndrome
- LCAD Deficiency
- LCHAD Deficiency
- Lead Poisoning
- Learning Disorders
- Leber Congenital Amaurosis
- Leber Congenital Amaurosis 2
- Leber Hereditary Optic Neuropathy
- Leber Miliary Aneurysm
- Left Ventricular Noncompaction
- Leg Injuries
- Leg Length Inequality
- Leg Ulcer
- Legg-Calve-Perthes Disease
- Legg-Perthes Disease
- Legionellosis
- Legionnaires' Disease
- Leigh Disease
- Leigh Syndrome
- Leiner Disease
- Leiomyoma
- Leiomyomatosis
- Leiomyomatosis and Renal Cell Cancer, Hereditary
- Leiomyosarcoma
- Leishmaniasis
- Leishmaniasis, Cutaneous
- Leishmaniasis, Mucocutaneous
- Leishmaniasis, Visceral
- Lens Diseases
- Lens Subluxation
- Lentigo
- Lentigo Maligna Melanoma
- Lentivirus Infections
- Leprosy
- Leprosy, Borderline
- Leprosy, Lepromatous
- Leprosy, Multibacillary
- Leptospirosis
- Leriche Syndrome
- Lesch-Nyhan Syndrome
- Leukemia
- Leukemia, B-Cell
- Leukemia, B-cell, Chronic
- Leukemia, Basophilic, Acute
- Leukemia, Biphenotypic, Acute
- Leukemia, Eosinophilic, Acute
- Leukemia, Erythroblastic, Acute
- Leukemia, Hairy Cell
- Leukemia, Large Granular Lymphocytic
- Leukemia, Lymphocytic, Chronic, B-Cell
- Leukemia, Lymphoid
- Leukemia, Mast-Cell
- Leukemia, Megakaryoblastic, Acute
- Leukemia, Monocytic, Acute
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive
- Leukemia, Myeloid
- Leukemia, Myeloid, Accelerated Phase
- Leukemia, Myeloid, Acute
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative
- Leukemia, Myeloid, Chronic-Phase
- Leukemia, Myelomonocytic, Acute
- Leukemia, Myelomonocytic, Chronic
- Leukemia, Myelomonocytic, Juvenile
- Leukemia, Neutrophilic, Chronic
- Leukemia, Plasma Cell
- Leukemia, Prolymphocytic
- Leukemia, Prolymphocytic, B-Cell
- Leukemia, Prolymphocytic, T-Cell
- Leukemia, Promyelocytic, Acute
- Leukemia, T-Cell
- Leukemia, T-cell, Chronic
- Leukemia-Lymphoma, Adult T-Cell
- Leukocyte Disorders
- Leukocyte-Adhesion Deficiency Syndrome
- Leukodystrophy
- Leukodystrophy, Globoid Cell
- Leukodystrophy, Metachromatic
- Leukoencephalopathies
- Leukoencephalopathy, Progressive Multifocal
- Leukomalacia
- Leukomalacia, Periventricular
- Leukopenia
- Leukoplakia
- Leukoplakia, Hairy
- Leukoplakia, Oral
- Levator Syndrome
- Lewy Body Dementia
- Lewy Body Disease
- Leydig Cell Tumor
- Li-Fraumeni Syndrome
- Lice Infestations
- Lichen Planus
- Lichen Planus Follicularis
- Lichen Planus, Oral
- Lichen Sclerosus
- Lichen Sclerosus et Atrophicus
- Liddle Syndrome
- Light Chain Deposition Disease
- Limb Deformities, Congenital
- Limb-girdle Muscular Dystrophy
- Limb-girdle Muscular Dystrophy Type 2H
- Limb-girdle Muscular Dystrophy, Type 2A
- Limb-girdle Muscular Dystrophy, Type 2B
- Limb-girdle Muscular Dystrophy, Type 2C
- Limbic Encephalitis
- Linitis Plastica
- Lip and Oral Cavity Cancer
- Lip Neoplasms
- Lipid Metabolism Disorders
- Lipid Metabolism, Inborn Errors
- Lipidoses
- Lipodystrophy
- Lipodystrophy, Congenital Generalized
- Lipogranulomatosis
- Lipoma
- Lipomatosis
- Liposarcoma
- Liposarcoma, Myxoid
- Listeria Infection
- Listeriosis
- Lithiasis
- Livedo Reticularis
- Liver Abscess
- Liver Abscess, Amebic
- Liver Abscess, Pyogenic
- Liver Cancer
- Liver Cirrhosis
- Liver Cirrhosis, Alcoholic
- Liver Cirrhosis, Biliary
- Liver Cirrhosis, Experimental
- Liver Diseases
- Liver Diseases, Alcoholic
- Liver Failure
- Liver Failure, Acute
- Liver Neoplasms
- Localized Scleroderma
- Locked-in Syndrome
- Loeys-Dietz Syndrome
- Logopenic Progressive Aphasia
- Loiasis
- Long QT Syndrome
- Long QT Syndrome 1
- Lordosis
- Low Back Pain
- Low Tension Glaucoma
- Lowe Oculocerebrorenal Syndrome
- Lung Abscess
- Lung Diseases
- Lung Diseases, Fungal
- Lung Diseases, Interstitial
- Lung Diseases, Obstructive
- Lung Injury
- Lung Neoplasms
- Lung, Hyperlucent
- Lupus Erythematosus, Cutaneous
- Lupus Erythematosus, Discoid
- Lupus Erythematosus, Systemic
- Lupus Nephritis
- Lupus Vasculitis, Central Nervous System
- Lyme Disease
- Lyme Neuroborreliosis
- Lymph Node Neoplasm
- Lymphadenitis
- Lymphangiectasis
- Lymphangioleiomyomatosis
- Lymphangioma
- Lymphangioma, Cystic
- Lymphangiomatosis
- Lymphangiomyoma
- Lymphangiosarcoma
- Lymphatic Abnormalities
- Lymphatic Diseases
- Lymphatic Filariasis
- Lymphatic Metastasis
- Lymphedema
- Lymphoblastic Lymphoma
- Lymphocele
- Lymphocytic Colitis
- Lymphocytosis
- Lymphohistiocytosis, Hemophagocytic
- Lymphoma
- Lymphoma AIDSrelated
- Lymphoma, AIDS-Related
- Lymphoma, B-Cell
- Lymphoma, B-Cell, Marginal Zone
- Lymphoma, Extranodal NK-T-Cell
- Lymphoma, Follicular
- Lymphoma, Large B-Cell, Diffuse
- Lymphoma, Large-cell
- Lymphoma, Large-Cell, Anaplastic
- Lymphoma, Large-Cell, Immunoblastic
- Lymphoma, Mantle-Cell
- Lymphoma, Non-Hodgkin
- Lymphoma, Primary Cutaneous Anaplastic Large Cell
- Lymphoma, Primary Effusion
- Lymphoma, Small Cleaved-cell, Diffuse
- Lymphoma, Small Cleaved-cell, Follicular
- Lymphoma, T-Cell
- Lymphoma, T-Cell, Cutaneous
- Lymphoma, T-Cell, Peripheral
- Lymphomatoid Granulomatosis
- Lymphomatoid Papulosis
- Lymphomatous Thyroiditis
- Lymphopenia
- Lymphoproliferative Disorders
- Lymphosarcoma
- Lynch Syndrome
- Lysosomal Storage Diseases
- Lysosomal Storage Diseases, Nervous System
- Machado-Joseph Disease
- Macrophage Activation Syndrome
- Macular Degeneration
- Macular Edema
- Magnesium Deficiency
- Malabsorption Syndromes
- Malaria
- Malaria, Cerebral
- Malaria, Falciparum
- Malaria, Vivax
- Malformations of Cortical Development
- Malignant Carcinoid Syndrome
- Malignant Fibrous Histiocytoma
- Malignant Germ Cell Tumor
- Malignant Hyperthermia
- Malignant Mesenchymal Tumor
- Malignant Mesothelioma
- Malignant Mixed Mullerian Tumor
- Malignant Peripheral Nerve Sheath Tumor
- Malnutrition
- Malocclusion
- Malocclusion, Angle Class II
- Malocclusion, Angle Class III
- Malonyl-CoA Decarboxylase Deficiency
- Mandibular Fractures
- Mandibular Injuries
- Mannosidase Deficiency Diseases
- Mansonelliasis
- Mantle Cell Lymphoma
- Maple Syrup Urine Disease
- Marburg Hemorrhagic Fever
- Marburg Virus Disease
- Marfan Syndrome
- Marijuana Abuse
- Marijuana Smoking
- Mast-Cell Sarcoma
- Mastitis
- Mastocytoma
- Mastocytosis
- Mastocytosis, Cutaneous
- Mastocytosis, Systemic
- Mastoiditis
- Maternal Hyperphenylalaninemia
- Maturity-onset Diabetes of the Young
- Maxillary Diseases
- Maxillary Sinus Neoplasms
- Maxillary Sinusitis
- Maxillofacial Abnormalities
- Maxillofacial Injuries
- McCune Albright Syndrome
- Measles
- Meckel Syndrome
- Meconium Aspiration Syndrome
- Median Neuropathy
- Mediastinal Diseases
- Mediastinal Emphysema
- Mediastinal Neoplasms
- Mediastinitis
- Medullary Cystic Kidney Disease
- Medulloblastoma
- Medulloblastoma, Childhood
- Melanoma
- Melanoma, Experimental
- Melanoma, Familial
- Melanosis
- MELAS Syndrome
- Melena
- Meliodosis
- Melioidosis
- Membranoproliferative Glomerulonephritis Type 2
- Membranous Nephropathy
- Memory Disorders
- Menetrier Disease
- Meniere Disease
- Meningeal Carcinomatosis
- Meningeal Neoplasms
- Meningioma
- Meningitis
- Meningitis, Aseptic
- Meningitis, Bacterial
- Meningitis, Cryptococcal
- Meningitis, Fungal
- Meningitis, Haemophilus
- Meningitis, Meningococcal
- Meningitis, Pneumococcal
- Meningitis, Viral
- Meningococcal Infections
- Meningococcemia
- Meningomyelocele
- Menkes Disease
- Menkes Kinky Hair Syndrome
- Menopause
- Menopause, Premature
- Menorrhagia
- Menstruation Disturbances
- Mental Disorders
- Mental Disorders Diagnosed in Childhood
- Mental Fatigue
- Mental Retardation
- Mental Retardation, X-Linked
- Mercury Poisoning
- Merkel Cell Carcinoma
- Mesenchymoma
- Mesial Movement of Teeth
- Mesothelioma
- Metabolic Diseases
- Metabolic Syndrome X
- Metabolism, Inborn Errors
- Metachromatic Leukodystrophy
- Metal Metabolism, Inborn Errors
- Metaplasia
- Metastatic Squamous Neck Cancer With Occult Primary
- Metatarsalgia
- Methemoglobinemia
- Methionine Adenosyltransferase Deficiency
- Methylmalonic Acidemia
- Metrorrhagia
- Mevalonate Kinase Deficiency
- Mevalonic Aciduria
- Microcephaly
- Microencephaly
- Micrognathism
- Microphthalmos
- Microsatellite Instability
- Microscopic Polyangiitis
- Microsporidiosis
- Microvascular Angina
- Midline Lethal Granuloma
- Migraine Disorders
- Migraine with Aura
- Migraine without Aura
- Milk Hypersensitivity
- Miller Fisher Syndrome
- Milroy Disease
- Mineralocorticoid Excess Syndrome, Apparent
- Minimal Change Disease
- Miosis
- Mite Infestations
- Mitochondrial Diseases
- Mitochondrial Encephalomyopathies
- Mitochondrial Myopathies
- Mitochondrial Neurogastrointestinal Encephalopathy Syndrome
- Mitochondrial Trifunctional Protein Deficiency
- Mitral Valve Insufficiency
- Mitral Valve Prolapse
- Mitral Valve Stenosis
- Mixed Connective Tissue Disease
- Mixed Tumor, Mesodermal
- Mixed Tumor, Mullerian
- Miyoshi Myopathy
- Mobility Limitation
- Mobius Syndrome
- Molluscum Contagiosum
- Molybdenum Cofactor Deficiency
- Monckeberg Medial Calcific Sclerosis
- Mondini Dysplasia
- Mondor Disease
- Monkeypox
- Monoclonal Gammopathy of Undetermined Significance
- Mononeuropathies
- Monosomy
- Montefiore Syndrome
- Mood Disorders
- Morning Sickness
- Morphea
- Morphine Dependence
- Morquio Syndrome A
- Morvan's Fibrillary Chorea
- Motion Sickness
- Motor Neuro-ophthalmic Disorders
- Motor Neuron Disease
- Motor Skills Disorders
- Mouth Breathing
- Mouth Diseases
- Mouth Neoplasms
- Mouth, Edentulous
- Movement Disorders
- Moyamoya Disease
- Muckle-Wells Syndrome
- Mucocutaneous Lymph Node Syndrome
- Mucoepidermoid Carcinoma
- Mucolipidoses
- Mucopolysaccharidoses
- Mucopolysaccharidosis I
- Mucopolysaccharidosis II
- Mucopolysaccharidosis III
- Mucopolysaccharidosis IV
- Mucopolysaccharidosis Type I
- Mucopolysaccharidosis Type II
- Mucopolysaccharidosis Type III
- Mucopolysaccharidosis Type IIIA
- Mucopolysaccharidosis Type IIIB
- Mucopolysaccharidosis Type VI
- Mucopolysaccharidosis Type VII
- Mucopolysaccharidosis VI
- Mucopolysaccharidosis VII
- Mucormycosis
- Mucositis
- Muenke Syndrome
- Multicentric Castleman’s Disease
- Multicore Disease
- Multicystic Dysplastic Kidney
- Multifocal Choroiditis
- Multifocal Lymphangioendotheliomatosis With Thrombocytopenia
- Multiple Chemical Sensitivity
- Multiple Endocrine Neoplasia
- Multiple Endocrine Neoplasia Type 1
- Multiple Endocrine Neoplasia Type 2
- Multiple Endocrine Neoplasia Type 2a
- Multiple Endocrine Neoplasia Type 2b
- Multiple Myeloma
- Multiple Organ Failure
- Multiple Pulmonary Nodules
- Multiple Sclerosis
- Multiple Sclerosis, Chronic Progressive
- Multiple Sclerosis, Relapsing-Remitting
- Multiple System Atrophy
- Multiple System Atrophy (MSA) With Orthostatic Hypotension
- Multiple Trauma
- Mumps
- Muscle Cramp
- Muscle Eye Brain Disease
- Muscle Hypertonia
- Muscle Hypotonia
- Muscle Neoplasms
- Muscle Rigidity
- Muscle Spasticity
- Muscle Weakness
- Muscular Atrophy
- Muscular Atrophy, Spinal
- Muscular Diseases
- Muscular Disorders, Atrophic
- Muscular Dystrophies
- Muscular Dystrophies, Limb-Girdle
- Muscular Dystrophy, Duchenne
- Muscular Dystrophy, Facioscapulohumeral
- Muscular Dystrophy, Oculopharyngeal
- Musculoskeletal Abnormalities
- Musculoskeletal Diseases
- Mushroom Poisoning
- Mutism
- Myasthenia Gravis
- Myasthenic Syndromes, Congenital
- Mycobacterium Abscessus
- Mycobacterium Avium Complex
- Mycobacterium avium-intracellulare Infection
- Mycobacterium Infections
- Mycobacterium Infections, Atypical
- Mycobacterium Xenopi
- Mycoplasma Infections
- Mycoplasmal Pneumonia
- Mycoses
- Mycosis Fungoides
- Mydriasis
- Myelitis
- Myelitis, Transverse
- Myelodysplastic Syndromes
- Myelodysplastic-Myeloproliferative Diseases
- Myelodysplastic/myeloproliferative Disease
- Myelofibrosis
- Myelomeningocele
- Myeloproliferative Disorders
- MYH9 Related Thrombocytopenia
- Myocardial Infarction
- Myocardial Ischemia
- Myocardial Reperfusion Injury
- Myocardial Stunning
- Myocarditis
- Myoclonic Epilepsies, Progressive
- Myoclonic Epilepsy, Juvenile
- Myoclonus
- Myoclonus Epilepsy
- Myofascial Pain Syndromes
- Myofibroma
- Myoglobinuria
- Myokymia
- Myoma
- Myopathies, Nemaline
- Myopathies, Structural, Congenital
- Myopathy Congenital
- Myopathy, Central Core
- Myopia
- Myopia, Degenerative
- Myositis
- Myositis, Inclusion Body
- Myotonia
- Myotonia Atrophica
- Myotonia Congenita
- Myotonic Disorders
- Myotonic Dystrophy
- Myotonic Dystrophy Type 1
- Myotubular Myopathy
- Myxoid Liposarcoma
- Myxoma
- Myxopapillary Ependymoma
- N-acetylglutamate Synthetase Deficiency
- Nail Diseases
- Nail-Patella Syndrome
- Nails, Ingrown
- Nails, Malformed
- Narcolepsy
- Nasal Obstruction
- Nasal Polyps
- Nasopharyngeal Carcinoma
- Nasopharyngeal Neoplasms
- Nasopharyngitis
- Nausea
- Neck Injuries
- Neck Pain
- Necrosis
- Necrotizing Enterocolitis
- Necrotizing Fasciitis
- Needlestick Injuries
- Neglected Diseases
- Neisseria Meningitidis Infection
- Neisseriaceae Infections
- Nelson Syndrome
- Nematode Infections
- Neointima
- Neonatal Abstinence Syndrome
- Neonatal Herpes
- Neonatal Hypothyroidism
- Neonatal Meningitis
- Neonatal Ovarian Cyst
- Neonatal Stroke
- Neonatal Systemic Lupus Erythematosus
- Neoplasm Metastasis
- Neoplasm Recurrence, Local
- Neoplasm, Residual
- Neoplasms, Adipose Tissue
- Neoplasms, Adnexal and Skin Appendage
- Neoplasms, Basal Cell
- Neoplasms, Connective and Soft Tissue
- Neoplasms, Connective Tissue
- Neoplasms, Cystic, Mucinous, and Serous
- Neoplasms, Fibrous Tissue
- Neoplasms, Germ Cell and Embryonal
- Neoplasms, Glandular and Epithelial
- Neoplasms, Hormone-Dependent
- Neoplasms, Muscle Tissue
- Neoplasms, Nerve Tissue
- Neoplasms, Neuroepithelial
- Neoplasms, Plasma Cell
- Neoplasms, Radiation-Induced
- Neoplasms, Second Primary
- Neoplasms, Squamous Cell
- Neoplasms, Unknown Primary
- Neoplastic Cells, Circulating
- Neoplastic Processes
- Neoplastic Syndromes, Hereditary
- Neovascularization, Pathologic
- Nephritis
- Nephritis, Hereditary
- Nephritis, Interstitial
- Nephrocalcinosis
- Nephrogenic Diabetes Insipidus
- Nephrogenic Fibrosing Dermopathy
- Nephrogenic Systemic Fibrosis
- Nephrolithiasis
- Nephropathic Cystinosis
- Nephrosclerosis
- Nephrosis
- Nephrosis, Lipoid
- Nephrotic Syndrome
- Nerve Compression Syndromes
- Nerve Degeneration
- Nerve Sheath Neoplasms
- Nervous System Malformations
- Nervous System Neoplasms
- Nesidioblastosis
- Netherton Syndrome
- Neural Tube Defects
- Neuralgia
- Neuralgia, Postherpetic
- Neurilemmoma
- Neuritis
- Neuroacanthocytosis
- Neuroaspergillosis
- Neuroaxonal Dystrophies
- Neurobehavioral Manifestations
- Neuroblastoma
- Neurocirculatory Asthenia
- Neurocutaneous Syndromes
- Neurocysticercosis
- Neurodegenerative Diseases
- Neurodermatitis
- Neuroectodermal Tumors
- Neuroectodermal Tumors, Primitive
- Neuroectodermal Tumors, Primitive, Peripheral
- Neuroendocrine Tumors
- Neuroepithelioma
- Neurofibroma
- Neurofibroma, Plexiform
- Neurofibromatoses
- Neurofibromatosis 1
- Neurofibromatosis 2
- Neurofibromatosis Type 1
- Neurofibromatosis Type 2
- Neurofibrosarcoma
- Neurogenic Diabetes Insipidus
- Neurogenic Inflammation
- Neuroleptic Malignant Syndrome
- Neurologic Manifestations
- Neuroma
- Neuroma, Acoustic
- Neuromuscular Diseases
- Neuromyelitis Optica
- Neuromyelitis Optica Spectrum Disorder
- Neuronal Ceroid-Lipofuscinoses
- Neuronal Migration Disorders
- Neuropathy Hereditary Sensory and Autonomic Type 1
- Neurosyphilis
- Neurotic Disorders
- Neurotoxicity Syndromes
- Neutral Lipid Storage Disease With Myopathy
- Neutropenia
- Nevoid Basal Cell Carcinoma Syndrome
- Nevus
- Nevus of Ota
- Nevus, Epithelioid and Spindle Cell
- Nevus, Pigmented
- New Daily-persistent Headache
- Newcastle Disease
- Niemann-Pick Disease Type B
- Niemann-Pick Disease Type C1
- Niemann-Pick Disease, Type A
- Niemann-Pick Disease, Type B
- Niemann-Pick Disease, Type C
- Niemann-Pick Diseases
- Night Blindness
- No-Reflow Phenomenon
- Nocturia
- Nocturnal Enuresis
- Nodular Melanoma
- Nodular Regenerative Hyperplasia
- Non 24 Hour Sleep Wake Disorder
- Non-Hodgkin Lymphoma, Childhood
- Nonalcoholic Steatohepatitis
- Nonbullous Congenital Ichthyosiform Erythroderma
- Nondystrophic Myotonia
- Nonseminomatous Germ Cell Tumor
- Noonan Syndrome
- Noonan Syndrome 1
- Norrie Disease
- Nose Deformities, Acquired
- Nose Neoplasms
- Notalgia Paresthetica
- Nut Hypersensitivity
- Nutrition Disorders
- Nystagmus, Congenital
- Nystagmus, Pathologic
- Obesity
- Obesity Hypoventilation Syndrome
- Obesity, Abdominal
- Obesity, Morbid
- Obsessive Behavior
- Obsessive-Compulsive Disorder
- Obstetric Labor Complications
- Obstetric Labor, Premature
- Occipital Horn Syndrome
- Occupational Diseases
- Ochronosis
- Ocular Cicatricial Pemphigoid
- Ocular Hypertension
- Ocular Melanoma
- Ocular Motility Disorders
- Ocular Toxoplasmosis
- Oculocerebrorenal Syndrome
- Oculocutaneous Albinism
- Oculodentodigital Dysplasia
- Oculomotor Apraxia Cogan Type
- Oculopharyngeal Muscular Dystrophy
- Olfaction Disorders
- Oligoastrocytoma
- Oligodendroglioma
- Oligohydramnios
- Oligomenorrhea
- Oligospermia
- Oliguria
- Omenn Syndrome
- Onchocerciasis
- Onchocerciasis, Ocular
- Oncogenic Osteomalacia
- Onycholysis
- Onychomycosis
- Open Bite
- Ophthalmia Neonatorum
- Ophthalmoplegia
- Opioid-Related Disorders
- Opportunistic Infections
- Opsoclonus-Myoclonus Syndrome
- Optic Atrophies, Hereditary
- Optic Atrophy
- Optic Atrophy 1
- Optic Atrophy, Autosomal Dominant
- Optic Atrophy, Hereditary, Leber
- Optic Disk Drusen
- Optic Nerve Diseases
- Optic Nerve Glioma
- Optic Nerve Injuries
- Optic Neuritis
- Optic Neuropathy, Anterior Ischemic
- Optic Neuropathy, Ischemic
- Optic Pathway Glioma
- Oral Cancer
- Oral Leukoplakia
- Oral Lichen Planus
- Oral Manifestations
- Oral Squamous Cell Carcinoma
- Oral Ulcer
- Orbital Cellulitis
- Orbital Diseases
- Orbital Fractures
- Orbital Lymphoma
- Orbital Pseudotumor
- Organic Acidemia
- Ornithine Carbamoyltransferase Deficiency Disease
- Ornithine Transcarbamylase Deficiency
- Orofaciodigital Syndromes
- Oropharyngeal Cancer, Adult
- Oropharyngeal Neoplasms
- Orthomyxoviridae Infections
- Orthostatic Intolerance
- Ossification of Posterior Longitudinal Ligament
- Ossification, Heterotopic
- Osteitis
- Osteitis Deformans
- Osteitis Fibrosa Cystica
- Osteoarthritis
- Osteoarthritis, Hip
- Osteoarthritis, Knee
- Osteochondritis
- Osteochondritis Dissecans
- Osteochondrodysplasias
- Osteochondroma
- Osteochondromatosis
- Osteochondrosis
- Osteogenesis Imperfecta
- Osteolysis
- Osteoma
- Osteoma, Osteoid
- Osteomalacia
- Osteomyelitis
- Osteonecrosis
- Osteopetrosis
- Osteophyte
- Osteoporosis
- Osteoporosis, Postmenopausal
- Osteoporosis-pseudoglioma Syndrome
- Osteoporotic Fractures
- Osteoradionecrosis
- Osteosarcoma
- Otitis
- Otitis Externa
- Otitis Media
- Otitis Media with Effusion
- Otitis Media, Suppurative
- Oto-Palatal-digital Syndrome
- Oto-palato-digital Syndrome Type 1
- Otorhinolaryngologic Diseases
- Otorhinolaryngologic Neoplasms
- Otosclerosis
- Out-of-Hospital Cardiac Arrest
- Ovarian Cancer
- Ovarian Carcinosarcoma
- Ovarian Cysts
- Ovarian Diseases
- Ovarian Epithelial Cancer
- Ovarian Germ Cell Tumor
- Ovarian Hyperstimulation Syndrome
- Ovarian Low Malignant Potential Tumor
- Ovarian Neoplasms
- Overbite
- Overdose
- Overnutrition
- Overweight
- Pachyonychia Congenita
- Paget Disease, Extramammary
- Pain
- Pain, Intractable
- Pain, Postoperative
- Palatopharyngeal Incompetence
- Pallister-Hall Syndrome
- Palmoplantar Keratoderma
- Pancoast Syndrome
- Pancreatic Adenoma
- Pancreatic Cancer
- Pancreatic Carcinoma, Familial
- Pancreatic Cyst
- Pancreatic Diseases
- Pancreatic Fistula
- Pancreatic Islet Cell Tumors
- Pancreatic Neoplasms
- Pancreatic Pseudocyst
- Pancreatitis
- Pancreatitis, Acute Necrotizing
- Pancreatitis, Alcoholic
- Pancreatitis, Chronic
- Pancreatitis, Graft
- Pancytopenia
- PANDAS
- Panic Disorder
- Panniculitis
- Pantothenate Kinase-Associated Neurodegeneration
- Panuveitis
- Papillary Renal Cell Carcinoma
- Papilledema
- Papilloma
- Papilloma, Inverted
- Papillomavirus Infections
- Papillon Lefevre Syndrome
- Papillon-Lefevre Disease
- Paraganglioma
- Paraganglioma, Extra-Adrenal
- Paragangliomas 1
- Parainfluenza Virus Type 3
- Paralyses, Familial Periodic
- Paralysis
- Paralysis, Hyperkalemic Periodic
- Paramyotonia Congenita
- Paramyxoviridae Infections
- Paranasal Sinus Neoplasms
- Paraneoplastic Polyneuropathy
- Paraneoplastic Syndromes
- Paraneoplastic Syndromes, Nervous System
- Paranoid Disorders
- Paraparesis
- Paraparesis, Spastic
- Paraparesis, Tropical Spastic
- Paraphilias
- Paraplegia
- Paraproteinemias
- Parapsoriasis
- Parasitemia
- Parasitic Diseases
- Parasomnias
- Parathyroid Carcinoma
- Parathyroid Diseases
- Parathyroid Neoplasms
- Paratuberculosis
- Paratyphoid Fever
- Paresis
- Paresthesia
- Parkes Weber Syndrome
- Parkinson Disease
- Parkinson Disease, Secondary
- Parkinsonian Disorders
- Parotid Neoplasms
- Parotitis
- Paroxysmal Nocturnal Hemoglobinuria
- Paroxysmal Ventricular Fibrillation
- Pars Planitis
- Parvoviridae Infections
- Passive-Aggressive Personality Disorder
- Patellar Dislocation
- Patellofemoral Pain Syndrome
- Patent Ductus Arteriosus
- Pathological Conditions, Anatomical
- Peanut Hypersensitivity
- Pearson Syndrome
- Pectus Carinatum
- Pediatric Crohns Disease
- Pediatric Multiple Sclerosis
- Pediatric Ulcerative Colitis
- Pedophilia
- Pelizaeus-Merzbacher Disease
- Pelvic Infection
- Pelvic Inflammatory Disease
- Pelvic Neoplasms
- Pelvic Organ Prolapse
- Pelvic Pain
- Pemphigoid, Benign Mucous Membrane
- Pemphigoid, Bullous
- Pemphigus
- Pemphigus Vulgaris
- Pemphigus, Benign Familial
- Penile Induration
- Penile Neoplasms
- Penis Agenesis
- Pentalogy of Cantrell
- Peptic Ulcer
- Peptic Ulcer Hemorrhage
- Peptic Ulcer Perforation
- Perceptual Disorders
- Peri-Implantitis
- Periapical Diseases
- Periapical Periodontitis
- Periarteritis Nodosa
- Periarthritis
- Pericardial Effusion
- Pericarditis
- Pericarditis, Constrictive
- Pericarditis, Tuberculous
- Periodic Fever, Familial, Autosomal Dominant
- Periodontal Attachment Loss
- Periodontal Diseases
- Periodontal Pocket
- Periodontitis
- Peripartum Cardiomyopathy
- Peripheral Arterial Disease
- Peripheral Nervous System Diseases
- Peripheral T-cell Lymphoma
- Peripheral Vascular Diseases
- Periprosthetic Fractures
- Peritoneal Diseases
- Peritoneal Fibrosis
- Peritoneal Neoplasms
- Peritonitis
- Peritonsillar Abscess
- Perivascular Epithelioid Cell Neoplasms
- Periventricular Leukomalacia
- Periventricular Nodular Heterotopia
- Peroneal Neuropathies
- Peroxisomal Disorders
- Peroxisome Biogenesis Disorders
- Persian Gulf Syndrome
- Persistent Fetal Circulation Syndrome
- Persistent Hyperinsulinemia Hypoglycemia of Infancy
- Persistent Truncus Arteriosus
- Persistent Vegetative State
- Personality Disorders
- Peutz-Jeghers Syndrome
- Peyronie Disease
- Pfeiffer Syndrome
- PHACE Syndrome
- Phantom Limb
- Pharyngeal Diseases
- Pharyngeal Neoplasms
- Pharyngitis
- Phenylketonuria, Maternal
- Phenylketonurias
- Pheochromocytoma
- Philadelphia Chromosome
- Phimosis
- Phlebitis
- Phobic Disorders
- Phosphoglycerate Kinase Deficiency
- Phosphorus Metabolism Disorders
- Photophobia
- Photosensitive Epilepsy
- Photosensitivity Disorders
- Phyllodes Tumor
- Pica
- Pick Disease of the Brain
- Pick's Disease
- Picornaviridae Infections
- Piebaldism
- Pierre Robin Sequence
- Pierre Robin Syndrome
- Pigment-dispersion Syndrome
- Pigmentary Retinopathy
- Pigmentation Disorders
- Pigmented Villonodular Synovitis
- Pilocytic Astrocytoma
- Pilomatrixoma
- Pilonidal Sinus
- Pinealoma
- Pineoblastoma
- Pineoblastoma, Childhood
- Pineocytoma
- Piriformis Muscle Syndrome
- Piriformis Syndrome
- Pituitary ACTH Hypersecretion
- Pituitary Diseases
- Pituitary Neoplasms
- Pityriasis
- Pityriasis Rosea
- Pityriasis Rubra Pilaris
- Placenta Accreta
- Placenta Previa
- Placenta, Retained
- Placental Insufficiency
- Plagiocephaly
- Plague
- Plaque, Amyloid
- Plaque, Atherosclerotic
- Plasma Cell Leukemia
- Plasma Thromboplastin Antecedent Deficiency
- Plasmacytoma
- Platelet Storage Pool Deficiency
- Platybasia
- Pleomorphic Malignant Fibrous Histiocytoma
- Pleomorphic Xanthoastrocytoma
- Pleural Diseases
- Pleural Effusion
- Pleural Effusion, Malignant
- Pleural Neoplasms
- Pleurisy
- Pleuropneumonia
- Pleuropulmonary Blastoma
- Pneumococcal Infections
- Pneumoconiosis
- Pneumocystis Infections
- Pneumocystosis
- Pneumonia
- Pneumonia, Aspiration
- Pneumonia, Bacterial
- Pneumonia, Eosinophilic
- Pneumonia, Mycoplasma
- Pneumonia, Pneumococcal
- Pneumonia, Pneumocystis
- Pneumonia, Staphylococcal
- Pneumonia, Ventilator-Associated
- Pneumonia, Viral
- Pneumoperitoneum
- Pneumothorax
- POEMS Syndrome
- Poisoning
- Poliomyelitis
- Polyarteritis Nodosa
- Polyarticular Onset Juvenile Idiopathic Arthritis
- Polychondritis, Relapsing
- Polycystic Kidney Diseases
- Polycystic Kidney, Autosomal Dominant
- Polycystic Kidney, Autosomal Recessive
- Polycystic Liver Disease
- Polycystic Ovary Syndrome
- Polycythemia
- Polycythemia Vera
- Polydactyly
- Polyembryoma
- Polyendocrinopathies, Autoimmune
- Polyhydramnios
- Polymorphic Catecholergic Ventricular Tachycardia
- Polymyalgia Rheumatica
- Polymyositis
- Polyneuropathies
- Polyomavirus Allograft Nephropathy
- Polyomavirus Infections
- Polyps
- Polyradiculoneuropathy
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
- Polyuria
- Pontine Glioma
- Porencephaly
- Porokeratosis
- Porokeratosis of Mibelli
- Porphyria Cutanea Tarda
- Porphyria, Acute Intermittent
- Porphyria, Erythropoietic
- Porphyria, Variegate
- Porphyrias
- Porphyrias, Hepatic
- Port-Wine Stain
- Positive-Pressure Respiration, Intrinsic
- Post Polio Syndrome
- Post-Concussion Syndrome
- Post-Dural Puncture Headache
- Post-transplant Lymphoproliferative Disease
- Post-traumatic Epilepsy
- Post-Traumatic Headache
- Postcholecystectomy Syndrome
- Posterior Tibial Tendon Dysfunction
- Posterior Urethral Valves
- Posterior Uveitis
- Postoperative Complications
- Postoperative Hemorrhage
- Postoperative Nausea and Vomiting
- Postpartum Hemorrhage
- Postpartum Thyroiditis
- Postpericardiotomy Syndrome
- Postphlebitic Syndrome
- Postpoliomyelitis Syndrome
- Postthrombotic Syndrome
- Postural Orthostatic Tachycardia Syndrome
- Potassium Deficiency
- Pouchitis
- Poxviridae Infections
- Prader-Willi Syndrome
- Pre-Eclampsia
- Pre-Excitation Syndromes
- Precancerous Conditions
- Precocious Puberty
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma
- Precursor Cell Lymphoblastic Leukemia-Lymphoma
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma
- Prediabetic State
- Pregnancy Complications
- Pregnancy Complications, Cardiovascular
- Pregnancy Complications, Infectious
- Pregnancy in Diabetics
- Pregnancy, Ectopic
- Pregnancy, Prolonged
- Pregnancy, Tubal
- Prehypertension
- Preleukemia
- Premature Birth
- Premature Ovarian Failure, Familial
- Premenstrual Syndrome
- Prenatal Exposure Delayed Effects
- Presbycusis
- Presbyopia
- Pressure Ulcer
- Priapism
- Primary Agammaglobulinemia
- Primary Biliary Cirrhosis
- Primary Carnitine Deficiency
- Primary Ciliary Dyskinesia
- Primary Dysautonomias
- Primary Effusion Lymphoma
- Primary Graft Dysfunction
- Primary Hyperoxaluria Type 1
- Primary Lateral Sclerosis
- Primary Myelofibrosis
- Primary Ovarian Insufficiency
- Primary Pigmented Nodular Adrenocortical Disease
- Primary Progressive Aphasia
- Primary Progressive Nonfluent Aphasia
- Primary Sclerosing Cholangitis
- Prinzmetal's Variant Angina
- Prion Diseases
- Proctitis
- Proctocolitis
- Progeria
- Prognathism
- Progressive Hemifacial Atrophy
- Progressive Multifocal Leukoencephalopathy
- Progressive Myoclonic Epilepsy
- Progressive Non-fluent Aphasia
- Progressive Supranuclear Palsy
- Prolactinoma
- Prolactinoma, Familial
- Prolapse
- Propionic Acidemia
- Prostatic Diseases
- Prostatic Hyperplasia
- Prostatic Intraepithelial Neoplasia
- Prostatic Neoplasms
- Prostatitis
- Prosthesis Failure
- Prosthesis-Related Infections
- Protein C Deficiency
- Protein Deficiency
- Protein-Energy Malnutrition
- Protein-Losing Enteropathies
- Proteinuria
- Proteus Infections
- Proteus Syndrome
- Protoporphyria
- Protoporphyria, Erythropoietic
- Protozoan Infections
- Prurigo
- Prurigo Nodularis
- Pruritus
- Pruritus Vulvae
- Pseudarthrosis
- Pseudo-Turner Syndrome
- Pseudocholinesterase Deficiency
- Pseudohypoaldosteronism
- Pseudohypoparathyroidism
- Pseudohypoparathyroidism Type 1A
- Pseudomonas Infections
- Pseudomyotonia
- Pseudomyxoma Peritonei
- Pseudopelade of Brocq
- Pseudophakia
- Pseudopseudohypoparathyroidism
- Pseudotumor Cerebri
- Pseudoxanthoma Elasticum
- Psoriasis
- Psychomotor Agitation
- Psychomotor Disorders
- Psychophysiologic Disorders
- Psychoses, Substance-Induced
- Psychotic Disorders
- Pterygium
- Pterygium of the Conjunctiva and Cornea
- Puberty, Delayed
- Puberty, Precocious
- Pudendal Neuralgia
- Puerperal Disorders
- Puerperal Infection
- Pulmonary Alveolar Proteinosis
- Pulmonary Arteriovenous Malformation
- Pulmonary Aspergillosis
- Pulmonary Atelectasis
- Pulmonary Atresia
- Pulmonary Blastoma
- Pulmonary Disease, Chronic Obstructive
- Pulmonary Edema
- Pulmonary Edema of Mountaineers
- Pulmonary Embolism
- Pulmonary Emphysema
- Pulmonary Eosinophilia
- Pulmonary Fibrosis
- Pulmonary Heart Disease
- Pulmonary Surfactant Protein B, Deficiency of
- Pulmonary Valve Insufficiency
- Pulmonary Valve Stenosis
- Pulmonary Vein Stenosis
- Pulmonary Veno-Occlusive Disease
- Pulmonary Venous Return Anomaly
- Pulmonic Stenosis
- Pulpitis
- Punctate Inner Choroidopathy
- Pupil Disorders
- Pure Autonomic Failure
- Pure Red Cell Aplasia
- Purpura
- Purpura, Schoenlein-Henoch
- Purpura, Thrombocytopenic
- Purpura, Thrombocytopenic, Idiopathic
- Purpura, Thrombotic Thrombocytopenic
- Pyelonephritis
- Pyloric Stenosis
- Pyloric Stenosis, Hypertrophic
- Pyoderma
- Pyoderma Gangrenosum
- Pyridoxine Deficiency
- Pyropoikilocytosis Hereditary
- Pyuria
- Q Fever
- Quadriplegia
- Quality of Life
- Rabies
- Radial Neuropathy
- Radiation Induced Brachial Plexopathy
- Radiation Induced Cancer
- Radiation Injuries
- Radiation Pneumonitis
- Radiculopathy
- Radiodermatitis
- Radius Fractures
- Rare Diseases
- Rasmussen Encephalitis
- Raynaud Disease
- Reactive Arthritis
- Reactive Attachment Disorder
- Rectal Diseases
- Rectal Fistula
- Rectal Neoplasms
- Rectal Prolapse
- Rectocele
- Rectovaginal Fistula
- Recurrence
- Recurrent Respiratory Papillomatosis
- Red-Cell Aplasia, Pure
- Refeeding Syndrome
- Reflex Sympathetic Dystrophy
- Reflex, Abnormal
- Refractive Errors
- Refsum Disease
- Refsum Disease, Infantile
- Refsum Disease, Infantile Form
- Regurgitation, Gastric
- Relapsing Fever
- Relapsing Polychondritis
- REM Sleep Behavior Disorder
- Renal Artery Obstruction
- Renal Cancer
- Renal Colic
- Renal Glycosuria
- Renal Insufficiency
- Renal Insufficiency, Chronic
- Renal Osteodystrophy
- Renal Tubular Acidosis
- Renal Tubular Acidosis, Distal, Autosomal Dominant
- Renal Tubular Dysgenesis
- Renal Tubular Transport, Inborn Errors
- Reperfusion Injury
- Respiration Disorders
- Respiratory Aspiration
- Respiratory Distress Syndrome, Adult
- Respiratory Distress Syndrome, Infant
- Respiratory Distress Syndrome, Newborn
- Respiratory Hypersensitivity
- Respiratory Insufficiency
- Respiratory Paralysis
- Respiratory Sounds
- Respiratory Syncytial Virus Infections
- Respiratory System Abnormalities
- Respiratory Tract Diseases
- Respiratory Tract Infections
- Respiratory Tract Neoplasms
- Restless Legs Syndrome
- Restless Legs Syndrome, Susceptibility To, 6
- Reticular Dysgenesis
- Retinal Artery Occlusion
- Retinal Degeneration
- Retinal Detachment
- Retinal Diseases
- Retinal Drusen
- Retinal Dystrophies
- Retinal Hemorrhage
- Retinal Neoplasms
- Retinal Neovascularization
- Retinal Perforations
- Retinal Telangiectasis
- Retinal Vasculitis
- Retinal Vein Occlusion
- Retinitis
- Retinitis Pigmentosa
- Retinitis Pigmentosa-deafness Syndrome
- Retinoblastoma
- Retinopathy of Prematurity
- Retinoschisis
- Retrocochlear Diseases
- Retrognathism
- Retroperitoneal Fibrosis
- Retroperitoneal Neoplasms
- Retroviridae Infections
- Rett Syndrome
- Revesz Syndrome
- Rh Isoimmunization
- Rhabdoid Tumor
- Rhabdomyolysis
- Rhabdomyosarcoma
- Rhabdomyosarcoma Alveolar
- Rhabdomyosarcoma Embryonal
- Rhabdomyosarcoma, Alveolar
- Rhabdomyosarcoma, Embryonal
- Rheumatic Diseases
- Rheumatic Fever
- Rheumatic Heart Disease
- Rhinitis
- Rhinitis, Allergic, Perennial
- Rhinitis, Allergic, Seasonal
- Rhinitis, Atrophic
- Rhinitis, Vasomotor
- Rhinoscleroma
- Rib Fractures
- Richter Syndrome
- Rickets
- Rickettsia Infections
- Rift Valley Fever
- RNA Virus Infections
- Rod Myopathy
- Romano-Ward Syndrome
- Root Resorption
- Rosacea
- Rotavirus Infections
- Rothmund-Thomson Syndrome
- Roussy Levy Syndrome
- Rubella
- Rubinstein-Taybi Syndrome
- Rupture
- Rupture, Spontaneous
- Russell-Silver Syndrome
- Sacrococcygeal Teratoma
- Sacroiliitis
- Salivary Gland Diseases
- Salivary Gland Neoplasms
- Salmonella Infections
- Salpingitis
- Sandhoff Disease
- SAPHO Syndrome
- Sarcoglycanopathies
- Sarcoidosis
- Sarcoidosis, Pulmonary
- Sarcoma
- Sarcoma, Alveolar Soft Part
- Sarcoma, Clear Cell
- Sarcoma, Endometrial Stromal
- Sarcoma, Ewing's
- Sarcoma, Kaposi
- Sarcoma, Synovial
- Sarcopenia
- Scabies
- Scheuermann Disease
- Schistosomiasis
- Schistosomiasis haematobia
- Schistosomiasis mansoni
- Schizophrenia
- Schizophrenia and Disorders with Psychotic Features
- Schizophrenia, Catatonic
- Schizophrenia, Childhood
- Schizophrenia, Disorganized
- Schizophrenia, Paranoid
- Schizotypal Personality Disorder
- Schnitzler Syndrome
- Schwannoma
- Sciatic Neuropathy
- Sciatica
- Scimitar Syndrome
- Scleritis
- Scleroatonic Muscular Dystrophy
- Scleroderma, Diffuse
- Scleroderma, Limited
- Scleroderma, Localized
- Scleroderma, Systemic
- Sclerosis
- Scoliosis
- Scotoma
- Scott Syndrome
- Scrub Typhus
- Scurvy
- Seasonal Affective Disorder
- Sebaceous Gland Diseases
- Seizures
- Seizures, Febrile
- Selective IgA Deficiency
- Self Mutilation
- Self-Injurious Behavior
- Semantic Dementia
- Seminoma
- Senior Loken Syndrome
- Sensation Disorders
- Sensory Neuropathy Type 1
- Sepsis
- Septo-Optic Dysplasia
- Seroma
- Serotonin Syndrome
- Serpiginous Choroiditis
- Sertoli-Leydig Cell Tumor
- Severe Acute Respiratory Syndrome
- Severe Combined Immunodeficiency
- Sex Chromosome Aberrations
- Sex Chromosome Disorders of Sex Development
- Sex Cord-Gonadal Stromal Tumors
- Sexual Dysfunction, Physiological
- Sexual Dysfunctions, Psychological
- Sexually Transmitted Diseases
- Sexually Transmitted Diseases, Viral
- Sezary Syndrome
- Shaken Baby Syndrome
- Shared Paranoid Disorder
- Sharp Syndrome
- Shigellosis
- Shock
- Shock, Cardiogenic
- Shock, Hemorrhagic
- Shock, Septic
- Shock, Surgical
- Shock, Traumatic
- Short Bowel Syndrome
- Shoulder Dislocation
- Shoulder Fractures
- Shoulder Impingement Syndrome
- Shoulder Pain
- Shprintzen-Goldberg Craniosynostosis Syndrome
- Shwachman-Diamond Syndrome
- Shy-Drager Syndrome
- Sialadenitis
- Sialorrhea
- Sick Sinus Syndrome
- Sickle Cell Anemia
- Sickle Cell Trait
- Sideroblastic Anemia Pyridoxine-refractory Autosomal Recessive
- Siderosis
- Sigmoid Neoplasms
- Signs and Symptoms, Digestive
- Signs and Symptoms, Respiratory
- Silicosis
- Silver-Russell Syndrome
- Single Ventricular Heart
- Sinonasal Undifferentiated Carcinoma
- Sinus Thrombosis, Intracranial
- Sinusitis
- Sitosterolemia
- Situs Inversus
- Sjogren's Syndrome
- Skin Abnormalities
- Skin Diseases
- Skin Diseases, Bacterial
- Skin Diseases, Eczematous
- Skin Diseases, Genetic
- Skin Diseases, Infectious
- Skin Diseases, Papulosquamous
- Skin Diseases, Parasitic
- Skin Diseases, Vascular
- Skin Diseases, Vesiculobullous
- Skin Manifestations
- Skin Neoplasms
- Skin Ulcer
- Skull Base Neoplasms
- Skull Fractures
- Sleep Apnea Syndromes
- Sleep Apnea, Central
- Sleep Apnea, Obstructive
- Sleep Bruxism
- Sleep Deprivation
- Sleep Disorders
- Sleep Disorders, Circadian Rhythm
- Sleep Disorders, Intrinsic
- Sleep Initiation and Maintenance Disorders
- Sleep-Wake Transition Disorders
- Small Cell Lung Carcinoma
- Small Intestine Cancer
- Small Non-cleaved Cell Lymphoma
- Smallpox
- Smith-Lemli-Opitz Syndrome
- Smith-Magenis Syndrome
- Smoke Inhalation Injury
- Smoking
- Snake Bites
- Sneezing
- Snoring
- Soft Tissue Infections
- Soft Tissue Injuries
- Soft Tissue Neoplasms
- Soft Tissue Sarcoma
- Solitary Fibrous Tumor, Pleural
- Solitary Fibrous Tumors
- Solitary Pulmonary Nodule
- Somatoform Disorders
- Somatosensory Disorders
- Somatostatinoma
- Spasm
- Spasmodic Dysphonia
- Spasms, Infantile
- Spastic Paraparesis
- Spastic Paraplegia Epilepsy Mental Retardation
- Spastic Paraplegia, Hereditary
- Speech Disorders
- Spermatic Cord Torsion
- Spherocytosis, Hereditary
- Spheroid Body Myopathy
- Sphincter of Oddi Dysfunction
- Sphingolipidoses
- Spielmeyer-Vogt Disease
- Spina Bifida
- Spina Bifida Cystica
- Spinal Cord Compression
- Spinal Cord Diseases
- Spinal Cord Injuries
- Spinal Cord Neoplasms
- Spinal Curvatures
- Spinal Diseases
- Spinal Dysraphism
- Spinal Fractures
- Spinal Injuries
- Spinal Muscular Atrophies of Childhood
- Spinal Muscular Atrophy
- Spinal Muscular Atrophy 1
- Spinal Muscular Atrophy Type 2
- Spinal Neoplasms
- Spinal Osteochondrosis
- Spinal Osteophytosis
- Spinal Shock
- Spinal Stenosis
- Spinocerebellar Ataxia 1
- Spinocerebellar Ataxia 10
- Spinocerebellar Ataxia 2
- Spinocerebellar Ataxia 3
- Spinocerebellar Ataxia Type 6
- Spinocerebellar Ataxias
- Spinocerebellar Degenerations
- Splenic Rupture
- Splenomegaly
- Spondylarthritis
- Spondylarthropathies
- Spondylitis
- Spondylitis, Ankylosing
- Spondylolisthesis
- Spondylolysis
- Spondylosis
- Spontaneous Coronary Artery Dissection
- Sporotrichosis
- Sprains and Strains
- Sprue, Tropical
- Squamous Cell Carcinoma of the Head and Neck
- Staphylococcal Infections
- Staphylococcal Scalded Skin Syndrome
- Staphylococcal Skin Infections
- Stargardt Disease
- Starvation
- Status Asthmaticus
- Status Epilepticus
- Steatorrhea
- Stereotypic Movement Disorder
- Stevens-Johnson Syndrome
- Stickler Syndrome
- Stiff-Person Syndrome
- Still's Disease Adult Onset
- Still's Disease, Adult-Onset
- Stomach Carcinoma
- Stomach Diseases
- Stomach Neoplasms
- Stomach Ulcer
- Stomatitis
- Stomatitis, Aphthous
- Stomatitis, Denture
- Stomatitis, Herpetic
- Stomatognathic Diseases
- Strabismus
- Streptococcal Group A Invasive Disease
- Streptococcal Infections
- Stress Cardiomyopathy
- Stress Disorders, Post-Traumatic
- Stress Disorders, Traumatic
- Stress Disorders, Traumatic, Acute
- Stress, Psychological
- Striae Distensae
- Stroke
- Strongyloidiasis
- Struma Ovarii
- Stupor
- Sturge-Weber Syndrome
- Stuttering
- Subarachnoid Hemorrhage
- Subclavian Steal Syndrome
- Subcutaneous Emphysema
- Subcutaneous Panniculitis-like T-cell Lymphoma
- Subdural Effusion
- Subependymal Giant Cell Astrocytoma
- Subependymoma
- Substance Abuse, Intravenous
- Substance Withdrawal Syndrome
- Substance-Related Disorders
- Succinic Semialdehyde Dehydrogenase Deficiency
- Sudden Infant Death
- Sudden Infant Death Syndrome
- Suicidal Ideation
- Suicide
- Suicide, Assisted
- Suicide, Attempted
- Sulfite Oxidase Deficiency
- Sunburn
- Superficial Spreading Melanoma
- Superior Limbic Keratoconjunctivitis
- Superior Vena Cava Syndrome
- Suppuration
- Supraglottic Laryngeal Cancer
- Supranuclear Palsy, Progressive
- Supratentorial Neoplasms
- Supratentorial Primitive Neuroectodermal Tumor
- Supratentorial Primitive Neuroectodermal Tumors, Childhood
- Supravalvular Aortic Stenosis
- Surgical Wound Dehiscence
- Surgical Wound Infection
- Susac Syndrome
- Swayback
- Sweat Gland Diseases
- Sweating, Gustatory
- Sweet Syndrome
- Sydenham's Chorea
- Syncope
- Syncope, Vasovagal
- Syndactyly
- Syndrome
- Synovial Cyst
- Synovial Sarcoma
- Synovitis
- Synovitis, Pigmented Villonodular
- Syphilis
- Syphilis, Latent
- Syringoma
- Syringomyelia
- Systemic Candidiasis
- Systemic Capillary Leak Syndrome
- Systemic Inflammatory Response Syndrome
- Systemic Mastocytosis
- Systemic Onset Juvenile Idiopathic Arthritis
- Systemic Vasculitis
- T-Lymphocytopenia
- T-Lymphocytopenia, Idiopathic CD4-Positive
- Tachycardia
- Tachycardia, Atrioventricular Nodal Reentry
- Tachycardia, Ectopic Atrial
- Tachycardia, Ectopic Junctional
- Tachycardia, Paroxysmal
- Tachycardia, Sinus
- Tachycardia, Supraventricular
- Tachycardia, Ventricular
- Taeniasis
- Takayasu Arteritis
- Takotsubo Cardiomyopathy
- Talipes Equinovarus
- Tangier Disease
- Taste Disorders
- Tauopathies
- Tay-Sachs Disease
- Telangiectasia, Hereditary Hemorrhagic
- Telangiectasis
- Temporomandibular Joint Disorders
- Temporomandibular Joint Dysfunction Syndrome
- Tendinopathy
- Tendon Entrapment
- Tendon Injuries
- Tennis Elbow
- Tenosynovitis
- Tension-Type Headache
- Teratoma
- Testicular Cancer
- Testicular Diseases
- Testicular Hydrocele
- Testicular Neoplasms
- Testotoxicosis
- Tetanus
- Tetany
- Tetrahydrobiopterin Deficiency
- Tetralogy of Fallot
- Thalassemia
- Thiamine Deficiency
- Thinness
- Thoracic Diseases
- Thoracic Injuries
- Thoracic Neoplasms
- Thoracic Outlet Syndrome
- Thrombasthenia
- Thromboangiitis Obliterans
- Thrombocythemia, Essential
- Thrombocytopenia
- Thrombocytosis
- Thromboembolism
- Thrombophilia
- Thrombophlebitis
- Thrombosis
- Thrombotic Microangiopathies
- Thrombotic Thrombocytopenic Purpura, Acquired
- Thrombotic Thrombocytopenic Purpura, Congenital
- Thymic Epithelial Tumor
- Thymoma
- Thymus Neoplasms
- Thyroid Cancer, Anaplastic
- Thyroid Cancer, Follicular
- Thyroid Cancer, Medullary
- Thyroid Diseases
- Thyroid Neoplasms
- Thyroid Nodule
- Thyroiditis
- Thyroiditis, Autoimmune
- Thyrotoxic Periodic Paralysis
- Thyrotoxicosis
- Tibial Fractures
- Tibial Neuropathy
- Tic Disorders
- Tick-Borne Diseases
- Tick-borne Encephalitis
- Tics
- Tinea
- Tinea Capitis
- Tinea Pedis
- Tinea Versicolor
- Tinnitus
- Tissue Adhesions
- Tobacco Use Disorder
- Tongue Cancer
- Tongue Neoplasms
- Toni-Debre-Fanconi Syndrome
- Tonsillitis
- Tooth Abnormalities
- Tooth Abrasion
- Tooth Attrition
- Tooth Demineralization
- Tooth Discoloration
- Tooth Diseases
- Tooth Erosion
- Tooth Fractures
- Tooth Injuries
- Tooth Loss
- Tooth Mobility
- Tooth Wear
- Tooth, Impacted
- Tooth, Nonvital
- Tooth, Supernumerary
- Toothache
- Torsades de Pointes
- Torsion Abnormality
- Torticollis
- Tourette Syndrome
- Toxemia
- Toxic Epidermal Necrolysis
- Toxocariasis
- Toxoplasmosis
- Toxoplasmosis, Cerebral
- Toxoplasmosis, Congenital
- Toxoplasmosis, Ocular
- Tracheal Neoplasms
- Tracheal Stenosis
- Tracheitis
- Tracheobronchomalacia
- Tracheoesophageal Fistula
- Tracheomalacia
- Trachoma
- Transitional Cell Carcinoma
- Translocation, Genetic
- Transposition of Great Vessels
- Transposition of the Great Arteries
- Transsexualism
- Transverse Myelitis
- Trauma, Nervous System
- Tremor
- Tremor Hereditary Essential, 1
- Treponema Infection
- Treponemal Infections
- Trichiasis
- Trichomonas Infections
- Trichomonas Vaginitis
- Trichothiodystrophy Syndromes
- Trichotillomania
- Trichuriasis
- Tricuspid Atresia
- Tricuspid Valve Insufficiency
- Trigeminal Neuralgia
- Trigger Finger Disorder
- Trigger Thumb
- Trismus
- Trisomy
- Trisomy 13
- Trisomy 18
- Trophoblastic Neoplasms
- Tropical Sprue
- Truncus Arteriosus, Persistent
- Trypanosomiasis
- Trypanosomiasis, African
- Trypanosomiasis, Human East-African
- Tuberculosis
- Tuberculosis, Central Nervous System
- Tuberculosis, Lymph Node
- Tuberculosis, Meningeal
- Tuberculosis, Miliary
- Tuberculosis, Multidrug-Resistant
- Tuberculosis, Osteoarticular
- Tuberculosis, Pleural
- Tuberculosis, Pulmonary
- Tuberculous Meningitis
- Tuberous Sclerosis
- Tubular Aggregate Myopathy
- Tufted Angioma
- Tufting Enteropathy
- Tularemia
- Tumor Lysis Syndrome
- Tumor Virus Infections
- Turner Syndrome
- Twin Twin Transfusion Syndrome
- Tylosis
- Tympanic Membrane Perforation
- Typhoid Fever
- Typhus
- Typhus, Epidemic Louse-Borne
- Tyrosinemia Type 1
- Tyrosinemias
- Ulcer
- Ulcerative Proctitis
- Ulna Fractures
- Ulnar Nerve Compression Syndromes
- Ulnar Neuropathies
- Unconsciousness
- Unverricht-Lundborg Disease
- Unverricht-Lundborg Syndrome
- Upper Extremity Deep Vein Thrombosis
- Urachal Cancer
- Urea Cycle Disorders
- Urea Cycle Disorders, Inborn
- Ureaplasma Infections
- Uremia
- Ureteral Calculi
- Ureteral Diseases
- Ureteral Neoplasms
- Ureteral Obstruction
- Ureterolithiasis
- Urethral Cancer
- Urethral Neoplasms
- Urethral Stricture
- Urethritis
- Urinary Bladder Calculi
- Urinary Bladder Diseases
- Urinary Bladder Neck Obstruction
- Urinary Bladder Neoplasms
- Urinary Bladder, Neurogenic
- Urinary Bladder, Overactive
- Urinary Calculi
- Urinary Incontinence
- Urinary Incontinence, Stress
- Urinary Incontinence, Urge
- Urinary Retention
- Urinary Tract Infections
- Urination Disorders
- Urogenital Abnormalities
- Urogenital Neoplasms
- Urolithiasis
- Urologic Diseases
- Urologic Neoplasms
- Urological Manifestations
- Urticaria
- Urticaria Pigmentosa
- Usher Syndrome Type 3
- Usher Syndrome, Type 1
- Usher Syndromes
- Usual Interstitial Pneumonia
- Uterine Cervical Diseases
- Uterine Cervical Dysplasia
- Uterine Cervical Incompetence
- Uterine Cervical Neoplasms
- Uterine Cervicitis
- Uterine Diseases
- Uterine Hemorrhage
- Uterine Inertia
- Uterine Neoplasms
- Uterine Perforation
- Uterine Prolapse
- Uterine Rupture
- Uterine Sarcoma
- Uveal Diseases
- Uveal Neoplasms
- Uveitis
- Uveitis, Anterior
- Uveitis, Intermediate
- Uveitis, Posterior
- Uveomeningoencephalitic Syndrome
- Vaccinia
- VACTERL Association
- Vaginal Cancer
- Vaginal Discharge
- Vaginal Diseases
- Vaginal Fistula
- Vaginal Neoplasms
- Vaginismus
- Vaginitis
- Vaginosis, Bacterial
- Varicocele
- Varicose Ulcer
- Varicose Veins
- Variegate Porphyria
- Vascular Diseases
- Vascular Headaches
- Vascular Malformations
- Vascular System Injuries
- Vasculitis
- Vasculitis, Leukocytoclastic, Cutaneous
- Vasospasm, Intracranial
- Velopharyngeal Insufficiency
- Venezuelan Equine Encephalitis
- Venous Insufficiency
- Venous Thromboembolism
- Venous Thrombosis
- Ventilator-Induced Lung Injury
- Ventricular Dysfunction
- Ventricular Dysfunction, Left
- Ventricular Dysfunction, Right
- Ventricular Fibrillation
- Ventricular Flutter
- Ventricular Premature Complexes
- Ventricular Remodeling
- Ventricular Septal Defects
- Vernal Keratoconjunctivitis
- Vertebral Artery Dissection
- Vertebrobasilar Insufficiency
- Vertical Talus, Congenital
- Vertigo
- Vesico-Ureteral Reflux
- Vesicovaginal Fistula
- Vesicular Stomatitis
- Vestibular Diseases
- Vestibular Neuronitis
- Vestibulocochlear Nerve Diseases
- Vibrio Infections
- Viral Hemorrhagic Fever
- Viremia
- Virilism
- Virus Associated Hemophagocytic Syndrome
- Virus Diseases
- Visceral Steatosis
- Vision Disorders
- Vision, Low
- Vitamin A Deficiency
- Vitamin B 12 Deficiency
- Vitamin B 6 Deficiency
- Vitamin D Deficiency
- Vitelliform Macular Dystrophy
- Vitiligo
- Vitreoretinopathy, Proliferative
- Vitreous Detachment
- Vitreous Hemorrhage
- VLCAD Deficiency
- Vocal Cord Paralysis
- Vogt-Koyanagi-Harada Syndrome
- Voice Disorders
- Vomiting
- Von Hippel-Lindau Disease
- Von Hippel-Lindau Syndrome
- Von Willebrand Disease, Type 1
- Von Willebrand Disease, Type 2
- Von Willebrand Disease, Type 3
- Von Willebrand Diseases
- Vulvar Cancer
- Vulvar Diseases
- Vulvar Lichen Sclerosus
- Vulvar Neoplasms
- Vulvar Vestibulitis
- Vulvar Vestibulitis Syndrome
- Vulvodynia
- Vulvovaginitis
- WAGR Syndrome
- Waldenstrom Macroglobulinemia
- Walker-Warburg Syndrome
- Warm Antibody Hemolytic Anemia
- Warts
- Wasting Syndrome
- Water Intoxication
- Water-Electrolyte Imbalance
- Watermelon Stomach
- Watson Syndrome
- WDHA Syndrome
- Weber Syndrome
- Wegener Granulomatosis
- Weight Gain
- Weight Loss
- Weil Disease
- Wells Syndrome
- Werner Syndrome
- Wernicke Encephalopathy
- Wernicke-Korsakoff Syndrome
- West Nile Encephalitis
- West Nile Fever
- West Nile Virus
- West Syndrome
- Western Equine Encephalitis
- Wet Macular Degeneration
- Wheat Hypersensitivity
- WHIM Syndrome
- Whiplash Injuries
- Whooping Cough
- Williams Syndrome
- Wilms Tumor
- Wilson Disease
- Wiskott-Aldrich Syndrome
- Wolff-Parkinson-White Syndrome
- Wolfram Syndrome
- Wolman Disease
- Wound Infection
- Wounds and Injuries
- Wounds, Nonpenetrating
- Wounds, Penetrating
- Wrist Injuries
- X-linked Adrenal Hypoplasia Congenita
- X-linked Agammaglobulinemia
- X-Linked Combined Immunodeficiency Diseases
- X-linked Congenital Stationary Night Blindness
- X-linked Hypohidrotic Ectodermal Dysplasia
- X-linked Ichthyosis
- X-linked Lymphoproliferative Syndrome
- X-linked Mental Retardation and Macro-orchidism
- X-linked Severe Combined Immunodeficiency
- Xanthomatosis
- Xanthomatosis, Cerebrotendinous
- Xeroderma Pigmentosum
- Xerophthalmia
- Xerostomia
- XYY Karyotype
- Yaws
- Yellow Fever
- Yolk Sac Tumor
- Zellweger Syndrome
- Zenker Diverticulum
- Zollinger-Ellison Syndrome
- Zygomatic Fractures
- Zygomycosis
- 21-hydroxylase Deficiency
- 22q11 Deletion Syndrome
- 22q11.2 Deletion Syndrome
- 22q13.3 Deletion Syndrome
- 47 XXX Syndrome
- 47, XYY Syndrome
- 5-Nucleotidase Syndrome
- 5q- Syndrome
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