A Case of Intussusception Caused by Hemorrhagic Colitis O-157 and Reduced by Colonoscopy

Abstract

A 16-year-old man was referred to our hospital because of abdominal pain, vomiting, diarrhea and bloody stool. Abdominal CT scan showed intussusception of the ascending colon and cecum at hepatic flexure, but we could not find the cause of intussusception and so performed a colonoscopy. The colonoscopy showed intussusception at the hepatic flexure and a mucosal elevated lesion on the edge. Biopsy of the elevated lesion was done, and the intussusception was easily reduced by air injection.
His stool culture was positive for Escherichia coli O-157, and the pathological finding of the biopsy revealed only inflammatory change and no tumor cells. Therefore we diagnosed the case as intussusception caused by Esherichia coli O-157. After reduction of intussusception, he was discharged from hospital without recurrence or complication.