CT demonstration of retrohepatic gallbladder in severe cirrhosis.

In two patients with hepatic cirrhosis and marked morphological distortion of the liver, the gallbladder was identified in a retrohepatic position on ultrasound and CT. The etiology of this anomalous position and the importance of the preoperative diagnosis of both congenital and acquired anomalous position of the gallbladder in patients with acute cholecystitis is discussed.