ARTERIAL VASCULARIZATION OF THE EXTRAHEPATIC BILIARY-TRACT

The aim of this study was to establish a plan of the arterial distribu tion to the main supraduodenal biliary tract in order to draw practica l conclusions for biliary surgery, especially in bilio-alimentary and bilio-biliary anastomoses and liver transplantation. It was based on a study of 60 fresh subjects and was carried out using four different m ethods: dissection after injection of colored latex into the superior mesenteric a. (10 subjects), radiography and dissection after injectio n of Micropaque into the celiac trunk (10), dissection after injection of Indian ink into the common hepatic a. (10) and radiography and dis section after selective injection of the right hepatic a. or the gastr oduodenal a. (30). Analysis of the results leads to definition of thre e types of vascularisation and two territories, superior and inferior, overlapping at the level of the mouth of the cystic duct. The practic al implications for biliary surgery and liver transplantation are disc ussed.