BMJ Case Reports 2018; doi:10.1136/bcr-2018-225406
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Bowel perforation in chronic idiopathic megarectum and megacolon

Open Access
  1. Hitesh Patel
  1. General Surgery, Newham University Hospital, London, UK
  1. Correspondence to Dr Alexandros Apostolopoulos, Alexandros.Apostolopoulos{at}
  • Accepted 30 May 2018
  • Published 20 August 2018


A 24-year-old man with autism spectrum disorder presented to accident and emergency complaining of a 1-week history of abdominal pain and diarrhoea. He had a history of chronic constipation with multiple previous admissions stretching 4 years back. On examination, he had a tender, distended abdomen with quiet bowel sounds. His CT scan on admission (figure 1) showed a dilated (up to 18 cm) rectum and sigmoid colon filled with faeces. The patient was managed conservatively with oral laxatives and regular enemas. However, the patient refused the enemas and was maintained on oral laxatives. Two days later, the patient complained of worsening abdominal pain. On examination, he had a peritonitic abdomen and reduced consciousness level. Biochemical investigations revealed worsening renal function and that the patient was now acidotic. A chest X-ray revealed free air beneath the diaphragm. A repeat CT scan …

Open Access

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