One case of cystic duct carcinoma associated with pancreaticobiliary maljunction

Abstract

We report a case of cystic duct carcinoma associated with pancreaticobiliary maljunction (PBM) and diagnosed preoperatively. Case: 58-year-old female was admitted with gall bladder wall thickening detect by screening US. DIC-CT showed wall thickening at the neck of gall bladder, and ERCP showed PBM and obstruction of cystic duct. The convex type echoendoscope revealed a mass in the cystic duct. The case underwent surgery and was diagnosed pathologically as cystic duct carcinomas associated with PBM. PBM is a well known risk factor for development of biliary tract cancer. And it is sometimes difficult to make diagnosis of cystic duct carcinoma before surgery. This case suggests the need of comprehensive diagnostic imaging including EUS to diagnose the cystic duct carcinoma.