ABSTRACT
Gallstone ileus is a mechanical obstruction caused by the impaction of one or more gallstones within the lumen of any part of the gastrointestinal tract. Gallstone ileus is frequently proceeded by an episode of acute cholecystitis. The resulting inflammation and adhesions facilitate the erosion of the offending gallstone through the gallbladder wall forming a cholecystoenteric fistula and allowing the passage of the gallstone. Fifty five-year-old, 71-year-old, and 74-year-old female patients were admitted to the Asan Medical Center for nausea, vomiting, and nonspecific abdominal pain. Erect abdominal plain film revealed several moderately dilated loops of small bowel with air fluid levels. Computed tomography showed the classic triad of findings of gallstone ileus. Dilated loops of small bowel, air in the biliary tree and an ectopic stone in the ileum were demonstrated. These impacted stones were removed by surgical intervention.