title: Computed tomographic demonstration of obstruction of the inferior vena cava caused by hepatocellular carcinoma.
abstract: A case of hepatocellular carcinoma obstructing the hepatic portion of the inferior vena cava by extrinsic compression demonstrated on computerized tomography is presented. To our knowledge, only one previous case has been reported which demonstrates actual invasion of the inferior vena cava by hepatic tumor. The signs of obstruction include: nonvisualization of the intrahepatic portion of the IVC, dilatation of the infrahepatic IVC with paravertebral venous collaterals and lack of changes in the diameter of the IVC after Valsalva maneuver.
authors.forename: M
authors.initials: M
authors.lastname: Abaskaron
authors.forename: J
authors.initials: J
authors.lastname: Bisker
authors.forename: T
authors.initials: T
authors.lastname: Hayden
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging*; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*