Torsion of the gallbladder.

Herein we report two cases of acute torsion of the gallbladder, including an extremely rare instance of torsion of the fundus of the organ. Because symptoms of torsion of the gallbladder are similar to those of other diseases and because of its rarity, preoperative diagnosis is difficult. The cause of this disorder had not been determined. Torsion of the gallbladder may occur as an acute event or be subtle and recurrent. Because of the potentially catastrophic consequences of delayed surgical intervention, an abdominal operation should be performed early in patients with symptoms suggestive of acute cholecystitis, especially if a mass is palpable. The recommended treatment is cholecystectomy.