Intrahepatic portal vein thrombosis in an 84-year-old woman. In the portal venous phase of contrast-enhanced CT, the portal vein in the hepatic hilum shows linear hypodensity (arrows) and looks like bile duct dilatation. However, there are markedly enhanced multiple vessels (arrowheads) around the hypodense linear structure, which is called cavernous transformation of the portal vein. It is a typical finding of portal vein thrombosis in the hepatic hilum area.