Hepaticocystic duct--a case report.

A case of an anomalous extrahepatic biliary system is reported in which the common hepatic duct was found to enter the gallbladder, whereas the cystic duct drained the entire biliary system into the duodenum. In this case, the gangrenous gallbladder was removed and the continuity between the common hepatic duct and the gastrointestinal tract was restored by means of Roux-en-Y anastomosis. The identification and treatment options of this rare anomaly are briefly discussed.