The authors describe a perplexing clinical picture in which an important factor for diagnosing the lesion in the gall-bladder was hyperselective arteriography of the coeliac trunk, and more especially the hepatic artery. The association of a truc septum in the gall-bladder, without gall-stones, and of another digestive tube lesion, megadolicho-sigmoid and diverticulosis of the sigmoid, would appear to be an extremely rare entity, and this has been the cause of the pain reported by the patient over many years. The cholecystectomy performed appears to be the right choice, and the most effective therapeutic procedure.