Colonic Stricture After Hemolytic Uremic Syndrome Due to Enterohemorrhagic, Verotoxin-Producing Escherichia coli O157: A Case Report

Abstract

A 4-year-old boy was admitted to our hospital due to abdominal distension, vomiting and dehydration. He was intensively treated due to hemolytic uremic syndrome (HUS) caused by enterohemorrhagic, verotoxin-producing Escherichia coli (VTEC) O157 one year ago. A laparotomy was performed with a preoperative diagnosis of a stricture of the transverse colon. A partial resection of the transverse colon including the markedly strictured region and an end-to-end anastomosis was performed. Histopathologically, there were transmural fibrosis and disappearance of the muscularis propria, which was compatible with the previous ischemic changes due to VTEC O157 infection. The patient's postoperative course was uneventful. The presented case again reminded us that a colonic stricture, although rare, does occur in patients with VTEC O157 infection developing HUS.