Gallstone ileus seen on computed tomography (CT) scan
Gallstone ileus seen on computed tomography (CT) scan
CT scan in a 75-year-old woman with small bowel obstruction due to gallstone ileus. Left panel: Free air is seen in the biliary tree and gallbladder (arrow). Right panel: Dilated loops of small bowel with large gallstone with a calcified rim (arrow) impacted in the terminal ileum.