ABSTRACT
In the diagnosis of bile duct carcinoma, oral or intravenous cholangiography is of no air in the majority ofpatients with bile duct carcinoma who are jaundiced. Recently ultrasonography and CT are widely used for evalutionof biliary disease, but direct visualizing methods of the biliary tract by ERCP and PTC gives more detailed information and exact localization of the lesion. ERCP is less invasive and dangerous and has some more advantages than PTC. We analyzed 33 cases of confirmed extrahepatic bile duct caracinoma who were performed ERCP. The resultswere as follows; 1. The 7th decade was the predilection age, and the radio of male to female was 3.:1. 2. Thelocations of extrahepatic bile duct carcinomas were common bile duct in 45.5%, common hepatic duct in 27.3%,junction of cystic duct and widely extended in 12.1% respectively and junction of hepatic duct in 3.05 in order offrequency. 3. ERCP finding of extrahepatic bile duct carcinomas revealed complete obstruction of bile duct in mostcases, and irregular margined protuberant type was more common than smooth margined constricted type atobstruction site. 4. ERCP finding according to the location of lesion showed that protuberant type was relativelyfrequent in common bile duct and constircted type in common hepatic duct respectively.