Presentation
Increasing nonspecific abdominal pain over the last 3 days. Constipation. Known chronic cholecystitis and chronic renal insufficiency.
Patient Data
Age: 75 years
Gender: Female
From the case:
Gallstone ileus
Frontal

An abdominal radiograph demonstrates air-fluid level within the small bowel.
An intraperitoneal catheter with tip projected at the right upper quadrant.
From the case:
Gallstone ileus
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Axial liver window

Because of known renal insufficiency, imaging is without IV contrast.
Small bowel obstruction with visible gallbladder stone about 15 cm proximal to the ileocecal valve and air in the gallbladder.
A small volume of free fluid in the pelvis.
Case Discussion
The diagnosis was verified with an emergency operation.