portal hypertension

In medicine, portal hypertension is hypertension (high blood pressure) in the portal vein and its branches. It is often defined as a portal pressure gradient (the difference in pressure between the portal vein and the hepatic veins) of 12 mm Hg or greater. Many conditions can result in portal hypertension. In North America and Europe, it is usually the result of cirrhosis of the liver. However, in less industrialized parts of the world, climate permitting, the major cause is schistosomiasis.
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Portal hypertension n. Hypertension in the portal system as seen in cirrhosis of the liver and other conditions causing obstruction to the portal [more]Portal hypertension - Community and Resources

Noun
1. increase in blood pressure in the veins of the portal system caused by obstruction in the liver (often associated with alcoholic cirrhosis), causing enlargement of the spleen and collateral veins
(hypernym) malignant hypertension