Hepatic choristomas, defined as completely separated ectopic liver tissue, are rare. They are most commonly found adjacent to the gallbladder. Details of their anatomy, such as blood supply and biliary drainage, remain ill-defined and are inconsistently described in the literature.

A case of hepatic choristoma was found incidentally in a 77-year-old woman during an elective laparoscopic cholecystectomy.

We outlined its biliary drainage and blood supply, as well as our surgical approach, which may be a guide to surgeons who encounter hepatic choristomas in their clinical practice.