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Left: Laparoscopic cholecystectomy: Intra-operative finding of a large, distended gangrenous gallbladder which has undergone a 180 ° anticlockwise torsion along the cystic duct and artery. Right: Laparoscopic cholecystectomy: Unwinding the torted gallbladder reveals a loose strand of mesentery as the only attachment for the gallbladder to the liver.
