definitive treatment of the choledochal cysts associated with malignant tumors in the biliary tract was accomplished by excision of the cysts with tumor and choledochojejunostomy in two patients , by cystoduodenostomy following external drainage in one and by cholecystectomy with resection of invaded transverse colon in one with cancer of the gallbladder .
C0005423
biliary tract
C0153452
cancer of the gallbladder