Anatomy

Predominant blood supply to the Supra duodenal bile duct is derived from

Vessels that run upward along the bile duct from the duodenal end of the duct such as the retro duodenal and 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 run up along the CBD and supplies it with twigs in Non-axial distribution

Vessels that arise from the cystic aery