What is defined as a portal hypertension?
Portal hypertension is elevation of the venous pressure gradient within the portal vein more than 5mm Hg.
What is the main function of paraumbilical veins?
Paraumbilical veins connect the anterior abdominal wall and diaphragm with the left branch of the portal vein, allowing venous blood draining through these veins into the liver.
CT shows cirrhosis with portal hypertension and splenomegaly, upper abdominal varices, mild ascites, and dilated paraumbilical veins. Images suggest mild gallbladder wall thickening and cholelithiasis.