[Ileocecal resection for idiopathic intussusception in an adult].

A 60-year-old woman presented with abdominal pain and bloody stools. On examination, there was muscular guarding and rebound tenderness in the right abdomen. Abdominal ultrasonography and CT showed a concentric structure in the ascending colon and ascites. Emergency surgery was performed with a preoperative diagnosis of idiopathic intussusception. At operation, an intussusception was not seen, but ileocecal resection was performed to remove a possible tumor. No lesion that could have caused intussusception was identified in the resected bowel segment, so the condition was idiopathic.