Summary
A large portosystemic shunt between the inferior mesenteric vein and the right internal iliac vein in a 28-yr-old non-cirrhotic man is presented. This collateral was discovered by ultrasound done as a screening examination for gastrointestinal bleeding. The direct communication of the inferior mesenteric vein with the internal iliac vein was demonstrated by computed tomography and percutaneous transhepatic portography. Surgical ligation of the collateral, performed to prevent future portosystemic encephalopathy, resulted in reduction of serum ammonia level and cessation of long-standing hemorrhoidal bleeding.
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Horiguchi, Y., Kitano, T., Takagawa, H. et al. A large inferior mesenteric-caval shunt via the internal iliac vein. Gastroenterol Jpn 23, 684–687 (1988). https://doi.org/10.1007/BF02782956
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DOI: https://doi.org/10.1007/BF02782956