Related Experiment Video
Updated: Feb 1, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Gallbladder varices in a pediatric patient after roux-en-Y gastric bypass
Steven C Mehl1, Patrick C Bonasso2, Melvin S Dassinger2
1Department of General Surgery, Baylor College of Medicine, Houston, TX.
Abstract:
This is a case with associated radiologic images for a pediatric patient who developed portomesenteric and splenic vein thrombosis (PMSVT) after Roux-en-Y gastric bypass with subsequent development of portal cavernoma and gallbladder varices (GBV). This case highlights both the importance of post-operative prophylactic anti-coagulation after gastric bypass and detailed imaging following a diagnosis of PMSVT. This case is relevant for pediatric surgeons as they are performing this operation more frequently with the increase in pediatric obesity.
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