Gallstone ileus presenting as gastric outlet obstruction (Bouveret's syndrome): a case report.

Gallstone ileus is an uncommon condition that may result when a gallbladder or commonduct stone enters into the intestinal tract, usually as a result of an internal fistula between the gallbladder and the duodenum. It most frequently occurs in the terminal ileum. Gastric outlet obstruction syndrome due to the impaction of a gallstone in the duodenum passing through a cholecystoduodenal fistula was first reported in 1896 by Bouveret concern in 1-3% of patients with gallstone ileus. Since the first case-report, 300 other cases has been documented in the literature. Here we report a case of Bouveret's syndrome in order to increase awareness of this unusual cause of gastric outlet obstruction.