Abstract
A 66-year-old man was admitted to our hospital for detailed examination of an intrapancreatic bile duct tumor. He had undergone gallbladder bed resection and extrahepatic bile duct resection with choledochojejunostomy as treatment for gallbladder carcinoma caused by pancreaticobiliary maljunction with congenital biliary dilatation. One year later, positron emission tomography demonstrated high accumulation of 18F-fluorodeoxyglucose in the intrapancreatic bile duct. Endoscopic retrograde cholangiography demonstrated pancreaticobiliary maljunction and a filling defect in the intrapancreatic bile duct. Pathologically, the diagnosis was adenocarcinoma. With a diagnosis of intrapancreatic remnant bile duct cancer, pancreaticoduodenectomy was performed. The patient remains free of recurrence 28 months after the surgery.
Although remnant intrapancreatic bile duct cancer after bile duct resection and biliary reconstruction for pancreaticobiliary maljunction is rare, our experience suggests that we must always consider the possibility of the occurrence of carcinoma in the remnant bile duct after such surgery.
