Cystic vein

Cystic veins do not accompany the cystic artery.

Anatomy

Those cystic veins that arise upon the superior aspect of the body and neck of the gallbladder pass within loose connective tissue that occurs between the gallbladder and liver; they then enter the liver to drain into branches of the hepatic portal vein within the liver.

The rest of the gallbladder drains into 1-2 small cystic veins which then usually empty into either the hepatic portal vein within the liver, or into tributaries of the hepatic portal venous system that drain either the proximal bile duct or hepatic ducts; rarely, one or more cystic vein(s) drain(s) into the right branch of the hepatic portal vein directly.