Figure 1
Preoperative images. a Ultrasonography showed the “target sign” in the lower abdomen. b Enhanced CT revealed ileocolic intussusception and stretched mesenteric vessels. c The outer wall of the area of intussusception consisted of an edematous ileum (inner layer; black arrow) and dilated colon (outer layer; white arrow). d An enema examination showed “crab’s claw sign” in the transverse colon.