A 10-month-old baby girl was admitted to our emergency department because of vomiting, poor appetite, irritable crying for 3 days, and one episode of currant-jelly stool. Physical examination revealed hypoactive bowel sounds. Plain abdominal film showed ileus (Fig. A). Abdominal ultrasound study had an indeterminate result due to ileus. A low-dose computed tomography (CT) was then arranged and showed the classic appearance of intussusception, with a target-like lesion (Fig. B, arrow) and coronal reformatted image showed the invagination of the distal ileum into the colon (Fig. C, arrow). Surgical intervention revealed ileo-ileocolic type intussusception, and the lesion was successfully reduced manually. Lymphoid hyperplasia was identified on gross examination. The patient recovered without complication and was discharged on the fifth day after surgery.