[Volvulus of the gallbladder. Description of a case].

Volvulus of the gallbladder is infrequent and is predominantly observed in elderly women, being related to anatomical abnormalities of the gallbladder which, associated with other factors, favor twisting. This is commonly diagnosed as acute cholecystitis, causing severe, acute abdominal pain with a rapid evolution which may lead to the death of the patient if emergency surgery is not performed. A case of gallbladder volvulus diagnosed as acute appendicitis is presented as is a review of the literature.