Abstract
The bile duct system has one intrahepatic and as well extrahepatic distinct components, both subject to large anatomical variability. The left component of the bile duct is much more rarely when compared with than the right side. On the 100 pieces of hepatic corrosion casts, we analysed the confluence modality of II, III and IV segmental ducts, to form the lateral and medial branches, and finally the left hepatic duct. Depending on the confluence modality of these ducts and branches to form the left hepatic duct, we revealed three morphological types. In the majority of cases (Type I - 86% of cases) the confluence of segmental duct II and segmental duct III form the lateral branch and the confluence of lateral and medial branches form the left hepatic duct. In most of these cases, the confluence of segmental ducts II and III (to form the lateral branch), is located on the left side of the lateral portal branches origin branches origin, and the confluence of lateral and medial branches (to form the left hepatic duct) is located at the right of the origin of the medial portal branches. Relations of the intrahepatic biliary ducts system with the portal vein element have major practical importance in liver resection surgery and transplantation.
Keywords: corrosion casts; left intrahepatic bile duct system; major variations