We observed a significant sign in postenhancement computed tomography ofliver cirrhosis, that is visualization of portal venous branches. During postenhancement computed tomography scanning of liver, the portal vein can not be identified in liver parenchyme in 84% of patients without known cirrhosis (including chronic active hepatitis). The two have the same hemodynamic changes in that there is diffuse fibrosis and resultant decrease in vascular bed. Visualizaion of intrahepatic portal branches in postenhancement computed tomography is because of decreased diffusion ability and portal hypertension.