Anatomy

Predominant blood supply to the supraduodenal bile duct is derrived from:

Vessels that run upward along the bile duct from the duodenal end of the duct such as the retroduodenal and the gastroduodenal aeries

Vessels that run downward along the bile duct from the hepatic end of the duct such as the right hepatic aery

Vessels that arise from the hepatic aery proper as it runs up along the common bile duct and supplies it with twigs in a non-axial distribution

Vessels that arise from the cystic aery