Annotation. In this work, the options for the topographic structure of the extrahepatic bile ducts were studied, compared with the portal vein and the own hepatic artery, different options for the location of the extrahepatic bile duct of a morphological nature. Consequently, a comparative study of the structural features of the extrahepatic bile ducts in mammals with and without a gallbladder and structural rearrangements of the extrahepatic bile ducts after cholecystectomy is an urgent scientific problem in theoretical and practical medicine