Case 205: renal stone ileus

History An 80-year-old woman presented to the on-call surgical team with a 2-day history of abdominal distention and vomiting. Clinical examination revealed a distended tympanic abdomen with generalized tenderness but no evidence of peritoneal signs at physical examination. Relevant surgical history included previous intervention for renal stones, cholecystectomy, and cardiovascular and respiratory comorbidities. Abdominal radiography was performed in the emergency department, and computed tomography (CT) was performed based on the radiographic findings.