I131-rose bengal scanning in the detection of cholecystocolic fistula. New use of an established procedure.

A case of cholecystocolic fistula diagnosed by I131-Rose bengal scanning and later confirmed at the time of laparotomy is reported. The fistula was not seen by conventional contrast radiographic studies. It is suggested that I131-Rose bengal studies be considered in the study of patients suspected of having cholecystenteric fistulas.