Septum of the gallbladder, clinical implications and treatment.

We report four patients with a congenital gallbladder septum whose symptoms resembled those of cholelithiasis, in one case giving rise to acute cholecystitis. Cholecystectomy relieved symptoms in all cases and examination of the operative specimen confirmed the clinical diagnosis and X-ray findings. Ultrasonography made a positive diagnosis in the last two cases and no stones were found in any of the cases described. Cholecystectomy is advocated in symptomatic patients with this condition, even when gallstones are not present.