A Case of Biliary Cystadenocarcinoma arising from the porta hepatis with bile duct communication

Abstract

A 52 year-old woman complaining of jaundice was received close examination. Two cystic lesions around the porta hepatis, which oppressed the extrahepatic bile duct, were found. One of those was unilocular and existed in the median segment of the liver. Another was multilocular and existed on the hepatoduodenal ligament The latter lesion had a papillary tumor on its wall. Extended left lobectomy of the liver and extra-hepatic bile duct resection was performed. By the pathological examination, the histologic continuity of the two cystic tumors was proved and the tumor was diagnosed as a biliary cystadenocarcinoma originated from the bile duct of the porta hepatis. It showed luminal communication to the bile duct and lacked ovarian stroma, and was thought to be categorized as IPNB.