Adenocarcinoma of the gallbladder associated with congenital choledochal cyst and anomalous pancreaticobiliary ductal junction. Case report.

: In a 61-year-old woman, villous adenocarcinoma of the gallbladder was associated with a congenital choledochal cyst and anomalous pancreaticobiliary ductal junction. The patient had a history of congenital choledochal cyst treated by cystoduodenostomy 27 years previously. The condition was demonstrated by intraoperative cholangiography and histologically confirmed. Extended cholecystectomy, regional lymph node dissection, excision of the cyst and hepaticojejunostomy were performed successfully.