담도계 악성종양을 동반한 선천성 담관낭종 5예

Abstract

Although congenital choledochal cyst is a relatively rare developmental anomaly, several re- cent articles have drawn attention to the seemingly increased incidence of rnalignant tumors complicating it. During the period from Mar. 1973 to Mar. 1993, we encountered 5 cases (7.7%) of choledochal cyst with malignant tumors of biliary tract among 65 cases of choledochal cyst. The00 frequency of the associated cancers were in order of GB cancer (3 cases) and extrahepatic bile duct cancer(2 cases) in the cyst. In particular, a close etiologic relationship was suggested between those with associated anomalous pancreaticobiliary ductal union and the gallbladder carcinoma. For this reason, as well as the prevention of later development of cancer in the wall of the cyst, wide excision include cyst combined with reconstructive opera- tion and cholecystectomy is recommended as the treatment of choice for the choledochal cyst.