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August 1967

Structure and Size of Canine Common Bile Duct

Author Affiliations

Rochester, Minn
From the sections of Physiology, Surgical Pathology, and Surgery, Mayo Clinic and Mayo Foundation, Rochester, Minn.

Arch Surg. 1967;95(2):241-244. doi:10.1001/archsurg.1967.01330140079018

AS DESCRIBED by Miller,1 the extrahepatic bile passages in the dog consists of the hepatic ducts from the liver, the cystic duct to the gallbladder, and the common bile duct terminating at the ampulla in the duodenum. The right and left hepatic ducts may be single or double. The gallbladder is a pear-shaped vesicle which lies between the quadrate lobe of the liver medially and the right medial lobe laterally. The cystic duct extends from the neck of the gallbladder to the site of its junction with the first tributary from the liver. From this level distally to the duodenum, the main excretory channel which receives bile from the hepatic ducts is known as the common bile duct. In the dog, the lobar ducts do not unite to form the hepatic duct as they do in man but enter the main trunk of the excretory tree independently.1 One