[Bouveret syndrome: unusual cause of gallstone ileus].

Introduction: Bouveret syndrome consists of an obstruction of the gastric outlet due to the impaction of a gallstone in the duodenal bulb after migration through a cholecystoduodenal fistula.

Clinical Case: Patient with diffuse colicky abdominal pain, diarrhea and yellowish vomiting. The imaging tests carried out reveal significant gastric and duodenal dilation with the presence of gas at the gallbladder level with the existence of a cholecystoduodenal fistula with a rounded intraluminal image in the proximal jejunum compatible with migrated lithiasis.