Diverticulum of the hepatic duct: a rare anomaly

A diverticulum of the hepatic duct was found in a 25-year-old woman. Cholangiography revealed that the diverticulum was cystic in nature and contained several stones. Since the intrahepatic ducts are never seen at surgery, the authors stress the importance of preoperative and operative cholangiography in locating such anomalies.