INTRA-LUMINAL RADIATION THERAPY USING REMOTE AFTER LOADING SYSTEM (RALS) FOR REST LESION AFTER SURGICAL RESECTION OF BILIARY CANCER

Abstract

Three patients with advanced biliary tract cancer (two patients with upper or middle common bile duct canon and, one intrahepatic cholangiocell cancer) were treated by surgical resection. Histologically, cancer cell rest was found in the bile duct stump or common hepatic duct wall. Postoperative intra-luminal irradiation was added using a remote after loading system (RALS). All three patients have remained alive for about two years without evidence of relapse. This method is extremely effective for post operative cancer rest is the hepatic bile duct stump, periductal lymphatic invasion and perineural invasion, especially if the radiation field is defined by cholangiography and percutaneous transhepatic cholangioscope (PTCS).