Intersegmental connection with aberrant hepatic duct

A 66-year-old Japanese woman whose cystic duct drained into an aberrant bile duct was found to have an intersegmental connection bridging the right anterior and posterior ducts. The patient had cholelithiasis but no history of hepatic trauma, lending support to congenital etiology for the intersegmental duct. In the presence of aberrant bile ducts, a meticulous search may reveal such biliary communications.