Bile duct carcinoma arising from the anastomotic site of hepaticojejunostomy after the excision of congenital biliary dilatation: A case report

A SIGNIFICANT ASSOCIATION between congenital biliary dilatation (CBD) mad hepatobiliary malignancies is well established, t The cause of the association is presumed to be the reflux of pancreatic juice into the bile duct and the accumulation of bile juice in choledochal cyst caused by anomalous un ion of the pancreaticobiliary ductal system. These malignancies arise mostly in the gallbladder and the extrahepatic bile duct. Therefore the standard surgical managemen t of CBD is to excise the whole extrahepatic bile duct and to perform hepaticoenterostomy. We will describe a case of a 60-year-old woman who had undergone cyst excision, cholecystectomy, and Roux-en-Y anastomosis for CBD (Todani 's classification type I) 5 years earlier and who suffered from bile duct carcinoma arising in the anastomotic site of hepaticojejunostomy. This is the second reported case of a carcinoma that arose from the anastomotic site of hepaticojejunostomy for CBD.