Congenital duplication of a gallbladder is a rare anatomic malformatio
n. This malformation is rarely diagnosed preoperatively and usually is
discovered during the course of cholecystectomy. Whether discovered p
reoperatively or intraoperatively, biliary anatomy should be assessed,
then cholecystectomy should be performed on both gallbladders. Report
ed is a case of a duplicate gallbladder managed by performance of lapa
roscopic cholecystectomy.