Prenatal Diagnosis of Gall Bladder Duplication

The fetal gallbladder appears as a small, hypoechoic, oval cyst-like structure located at the lower border of the liver. The gallbladder is one of the commonest body organs to have an anatomical variation, it may vary in number, shape or position and affects both the cystic duct and its artery equally. Gallbladder duplication are thought to be benign but are mostly associated with foregut malformations and aberrant hepatic and mesenteric vessels. A 26-year-old; primigravida at 20 weeks of gestation with diamniotic diachorionic (DADC) twins was found to have two fluid-filled; parallel tubular structures in the right upper quadrant of the liver suggestive of Boyden's – Y shaped duplicated gall bladder in one of the foetuses meanwhile the other twin had a normal singular gall bladder. Preoperative delineation of variations of the hepatobiliary tract is of a paramount importance to avoid any potential damage to the ductal system as it is likely to easily overlooked and missed during surgery. Duplicated gallbladder after being detected prenatally in utero; the patient can be reassured for the benignancy of the outcome and prognosis