Novel EUS-guided microwave ablation of an unresectable pancreatic neuroendocrine tumor

Carlos Robles-Medranda, Martha Arevalo-Mora, Roberto Oleas, Juan Alcivar-Vasquez, Raquel Del Valle, Carlos Robles-Medranda, Martha Arevalo-Mora, Roberto Oleas, Juan Alcivar-Vasquez, Raquel Del Valle

Abstract

Video 1EUS-guided microwave ablation of an unresectable pancreatic mass using a novel generator platform and a specialized 19.5-gauge needle antenna.

Keywords: MWA, microwave ablation; RFA, radiofrequency ablation.

© 2022 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc.

Figures

Figure 1
Figure 1
EUS evaluation revealed a 35-mm × 32-mm hypoechoic pancreatic neck lesion with hyperenhancement on contrast-enhanced EUS.
Figure 2
Figure 2
EUS-guided microwave ablation with a 19.5-gauge needle delivering 5.8 GHz to the targeted pancreatic tumor.
Figure 3
Figure 3
A decrease in the size of the pancreatic neck lesion and complete ablation was noted after intervention on EUS.
Figure 4
Figure 4
Four-week follow-up CT scan on the cross-sectional plane showed good radiologic response with an avascular area in the head of the pancreas corresponding to the ablation zone.
Figure 5
Figure 5
Schematic comparison between radiofrequency and microwave ablation.

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Source: PubMed

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