In micronodular cirrhosis of the liver, there is a diffuse increase in echogenicity and deformation due to scarring of the portal and hepatic veins. This is often associated with portal hypertension, splenomegaly, ascites, and dilation and varicose transformation of the splenic vein. The portal vein may have a normal or reduced diameter intrahepatically, but may be enlarged in the extrahepatic region.