A rare cause of duodenal obstruction: Bouveret syndrome.

Gallstone ileus is a relatively rare pathology, most commonly obstructing the terminal ileum. Bouveret syndrome, leading to gastric outlet obstruction and seen with an incidence of less than 1%, is a syndrome met particularly in elderly patients and develops as the result of cholecysto-enteric fistula. In this report, it was aimed to present a 95-year-old case diagnosed with Bouveret syndrome.