PMID: 8957454Dec 1, 1996Paper

Anatomy and etiology of extrahepatic portal vein obstruction in children leading to bleeding esophageal varices

Journal of the American College of Surgeons
H AndoT Ito

Abstract

The cause of extrahepatic portal vein obstruction in childhood is unknown. We investigated the anatomical features of extra hepatic portal vein obstruction to clarify its cause. We studied portal venous anatomy in 10 patients with extrahepatic portal vein obstruction without hepatic disturbances ranging in age from 1 to 7 years (mean age, 4.2 years) using ultrasonography, portal venography, cholangio-computed tomography, and magnetic resonance imaging. The extrahepatic portal vein was not obliterated, but it crossed over the common bile duct from the left to the right side at the cranial level of the pancreas and ran in a cranial direction along the right side of the common bile duct or coiled itself around the bile duct. Thus, the extrahepatic portal vein formed a tortuous eta-shape. The portal vein was not obstructed in patients with extrahepatic portal vein obstruction but formed a characteristic eta-shape by coiling itself around the common bile duct, suggesting that extrahepatic portal vein obstruction has an embryological cause.

Citations

Feb 24, 2000·The Surgical Clinics of North America·J E Skandalakis, H Ellis
Jan 24, 2002·AJR. American Journal of Roentgenology·Dominik WeishauptBorut Marincek
Apr 3, 2012·World Journal of Gastroenterology : WJG·Roberto Gugig, Philip Rosenthal
Oct 18, 2005·Seminars in Pediatric Surgery·Frédéric Gauthier
Jul 16, 2009·Journal of Nippon Medical School = Nippon Ika Daigaku Zasshi·Tsubasa TakahashiTakashi Tajiri

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