Filtering
- CADASIL
- Calciphylaxis
- Camurati-Engelmann Disease
- Canavan Disease
- Candida Glabrata
- CANDLE Syndrome
- Capillary Malformation-arteriovenous Malformation Syndrome
- Carbamoyl Phosphate Synthetase 1 Deficiency
- Carcinoid Syndrome
- Carcinoid Tumor
- Cardiac Rupture
- Cardiofaciocutaneous Syndrome
- Cardiomyopathy Due to Anthracyclines
- Cardiospasm
- Carney Complex
- Carnitine Palmitoyltransferase 2 Deficiency
- Caroli Disease
- Carotid Body Tumor
- Carpenter Syndrome
- Cartilage-hair Hypoplasia
- Castleman Disease
- Catastrophic Antiphospholipid Syndrome
- Catecholaminergic Polymorphic Ventricular Tachycardia
- Cat Scratch Disease
- Cauda Equina Syndrome
- Caudal Regression Sequence
- CD4 Deficiency
- CDKL5 Deficiency Disorder
- Central Centrifugal Cicatricial Alopecia
- Central Congenital Hypothyroidism
- Central Core Disease
- Central Diabetes Insipidus
- Central Nervous System Germinoma
- Central Neurocytoma
- Central Pain Syndrome
- Central Serous Chorioretinopathy
- Centronuclear Myopathy
- Cerebellar Astrocytoma, Childhood
- Cerebellar Ataxia and Hypogonadotropic Hypogonadism
- Cerebellar Ataxia Ectodermal Dysplasia
- Cerebellar Degeneration
- Cerebellar Hypoplasia
- Cerebellar Liponeurocytoma
- Cerebral Astrocytoma, Childhood
- Cerebral Palsy Ataxic
- Cerebral Palsy Athetoid
- Cerebral Palsy Spastic Hemiplegic
- Cerebrospinal Fluid Leak
- Cerebrotendinous Xanthomatosis
- Cervical Dystonia
- Cervical Intraepithelial Neoplasia
- Chanarin-Dorfman Syndrome
- Chandler's Syndrome
- Chaotic Atrial Tachycardia
- Charcot-Marie-Tooth Disease
- Charcot-Marie-Tooth Disease Type 1
- Charcot-Marie-Tooth Disease Type 1A
- Charcot-Marie-Tooth Disease Type 1B
- Charcot-Marie-Tooth Disease Type 2
- Charcot-Marie-Tooth Disease Type 2A
- CHARGE Syndrome
- Charles Bonnet Syndrome
- CHD2 Myoclonic Encephalopathy
- Chediak-Higashi Syndrome
- Cherubism
- Chiari Malformation Type 2
- Chikungunya
- Childhood Acute Lymphoblastic Leukemia
- Childhood Apraxia of Speech
- Childhood Brain Stem Glioma
- Childhood Disintegrative Disorder
- Childhood Hepatocellular Carcinoma
- Childhood Hypophosphatasia
- Childhood-Onset Schizophrenia
- Childhood Supratentorial Embryonal Tumor, Not Otherwise Specified
- Children's Interstitial Lung Disease
- CHILD Syndrome
- Cholecystitis
- Cholera
- Cholesteatoma
- Cholesteryl Ester Storage Disease
- Chondroblastoma
- Chondrodysplasia Punctata Syndrome
- Chondroma
- Chondrosarcoma
- Chordoid Glioma of the Third Ventricle
- Chordoma
- Chorea-acanthocytosis
- Choriocarcinoma
- Chorioretinitis
- Choroideremia
- Choroiditis
- Choroid Plexus Carcinoma
- Choroid Plexus Papilloma
- Chromophil Renal Cell Carcinoma
- Chromophobe Renal Cell Carcinoma
- Chromosomal Triplication
- Chromosome 1p36 Deletion Syndrome
- Chromosome 1q21.1 Duplication Syndrome
- Chromosome 3q29 Microduplication Syndrome
- Chromosome 5q Deletion
- Chromosome 7q Duplication
- Chromosome 9p Deletion
- Chromosome 15q Duplication
- Chromosome 17p Deletion
- Chronic Active Epstein-Barr Virus Infection
- Chronic Eosinophilic Pneumonia
- Chronic Erosive Gastritis
- Chronic Graft Versus Host Disease
- Chronic Granulomatous Disease
- Chronic Inflammatory Demyelinating Polyneuropathy
- Chronic Intestinal Pseudoobstruction
- Chronic Lymphocytic Leukemia
- Chronic Myeloid Leukemia
- Chronic Myelomonocytic Leukemia
- Chronic Myeloproliferative Disorders
- Chronic Neutrophilic Leukemia
- Chronic Progressive External Ophthalmoplegia
- Chronic Recurrent Multifocal Osteomyelitis
- Chronic Thromboembolic Pulmonary Hypertension
- Chylomicron Retention Disease
- Chylothorax, Congenital
- Ciguatera Fish Poisoning
- Citrullinemia Type I
- Classic Galactosemia
- Clear Cell Renal Cell Carcinoma
- CLIPPERS
- Cloacal Exstrophy
- CLOVES Syndrome
- Coal Worker's Pneumoconiosis
- Coats Disease
- Cocaine Antenatal Exposure
- Coccidioidomycosis
- Coccygodynia
- Cockayne Syndrome
- Coenzyme Q10 Deficiency
- Coffin-Lowry Syndrome
- Cogan's Syndrome
- Cohen Syndrome
- Cold Agglutinin Disease
- Cold Urticaria
- Collecting Duct Carcinoma
- Colloid Cysts of Third Ventricle
- Coloboma of Optic Nerve
- Common Variable Immunodeficiency
- Compartment Syndrome
- Complement Component 5 Deficiency
- Complement Component Deficiency
- Complete Androgen Insensitivity Syndrome
- Complete Atrioventricular Canal
- Complex Regional Pain Syndrome
- Cone Dystrophy
- Cone-rod Dystrophy
- Cone-rod Dystrophy 2
- Congenital Adrenal Hyperplasia
- Congenital Amegakaryocytic Thrombocytopenia
- Congenital Amputation
- Congenital Aplastic Anemia
- Congenital Central Hypoventilation Syndrome
- Congenital Contractural Arachnodactyly
- Congenital Cytomegalovirus
- Congenital Diaphragmatic Hernia
- Congenital Disorders of Glycosylation
- Congenital Dyserythropoietic Anemia
- Congenital Dyserythropoietic Anemia Type 1
- Congenital Erythropoietic Porphyria
- Congenital Fiber Type Disproportion
- Congenital Fibrosis of Extraocular Muscles
- Congenital Generalized Lipodystrophy
- Congenital Heart Block
- Congenital Hemolytic Anemia
- Congenital Hepatic Fibrosis
- Congenital Herpes Simplex
- Congenital Human Immunodeficiency Virus
- Congenital Hyperinsulinism
- Congenital Hypopituitarism
- Congenital Hypothyroidism
- Congenital Insensitivity to Pain
- Congenitally Corrected Transposition of the Great Arteries
- Congenital Lymphedema
- Congenital Mesoblastic Nephroma
- Congenital Mirror Movement Disorder
- Congenital Muscular Dystrophy
- Congenital Muscular Dystrophy Due to Dystroglycanopathy
- Congenital Muscular Dystrophy Type 1A
- Congenital Myasthenic Syndromes
- Congenital Myotonic Dystrophy
- Congenital Pseudoarthrosis
- Congenital Rubella
- Congenital Sucrase-isomaltase Deficiency
- Congenital Thrombotic Thrombocytopenic Purpura
- Congenital Torticollis
- Congenital Tracheal Stenosis
- Congenital Vertical Talus
- Congenital Zika Syndrome
- Conjunctival Melanoma
- Conotruncal Heart Malformations
- Continuous Spike-wave During Slow Sleep Syndrome
- Conversion Disorder
- Corneal Endothelial Dystrophy Type 2