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What is the normal size of portal vein?

Gross anatomy. The portal vein usually measures approximately 8 cm in length in adults with a maximum diameter of 13 mm.

What is the main portal vein?

The portal vein (PV) (sometimes referred to as the main or hepatic portal vein) is the main vessel in the portal venous system and drains blood from the gastrointestinal tract and spleen to the liver. Article: Gross anatomy. Variant anatomy.

What is the right portal vein?

The right portal vein divides into anterior (supplying segments V and VIII) and posterior (supplying segments VI and VII) branches. The left portal vein may be divided into transverse and umbilical portions, as delineated by the ligamentum venosum, and is mostly extrahepatic in course.

What is portal vein dilation?

Increased blood pressure in the portal vein, called portal hypertension, is a major complication of liver disease, most commonly cirrhosis. A dilated portal vein (diameter of greater than 13 or 15 mm) is a sign of portal hypertension, with a sensitivity estimated at 12.5% or 40%.


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