総胆管結石を合併したcholedochoceleに対し内視鏡治療が可能だった1例

抄録

A 70-year-old man was referred to our hospital for continuous abdominal pain. He had undergone cholecystectomy for acute cholecystitis at another hospital and was being followed up for percutaneous drainage due to a postoperative biliary fistula. Computed tomography revealed a common bile duct (CBD) stone and a cystic lesion on the duodenal papilla. The CBD and cyst were connected. Endoscopic retrograde cholangiopancreatography was performed, and cystic dilation was identified in the duodenal papilla and diagnosed as a choledochal cyst. Endoscopic sphincterotomy (EST) and endoscopic papillary balloon dilation (EPBD) were performed, followed by CBD stone removal without complications. Choledochocele is a rare disease characterized by saccular dilatation at the end of the CBD in the duodenal wall. There are few reports of endoscopic treatment of CBD stones. The results suggest that EST and EPBD are effective treatment strategies for choledochocele.