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  • Title: Extrahepatic portosystemic venous shunt without portal hypertension.
    Author: Nishimoto Y, Hoshino H, Sato S, Oguri A, Yamada M, Nishimura D, Katada N, Sano H, Kato K.
    Journal: Intern Med; 1997 Dec; 36(12):886-9. PubMed ID: 9475244.
    Abstract:
    A 72-year-old woman was admitted for recurrent episodes of encephalopathy. Laboratory data showed mild liver dysfunction and hyperammonemia, while she had neither anemia nor splenomegaly. The dilated inferior mesenteric vein (IMV) was opacified retrogradely from the superior mesenteric vein by superior mesenteric arteriography, and IMV was found to connect with the inferior vena cava (IVC) through a torturous shunt. No obstruction of the extrahepatic portal vein or hepatic vein was observed by arteriography. Histological evaluation of the liver biopsy indicated remarkable fatty change without cirrhosis. Finally, we diagnosed this case as extrahepatic portosystemic venous shunt without portal hypertension.
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