leads to toxic megacolon and multiple organ failure.

A 58-year-old woman presented to the emergency department in a district general hospital with severe abdominal pain and diarrhoea, after collapsing at home. She was admitted to the intensive care unit (ICU) in septic shock, and with acute kidney injury. An initial CT scan was suggestive of colitis. She was treated for suspected gastroenteritis and her microbiology results showed as the causative organism. She failed to respond to antibiotics, and underwent serial contrast CTs which showed no progression of colitis. Colonoscopy performed on day 10 of her admission, however, revealed fulminant colitis. After a multidisciplinary meeting among gastroenterologists, general surgeons and intensivists, the patient underwent total colectomy with ileostomy. She made a slow but steady recovery in ICU, and subsequently in the ward, and was discharged to a local community hospital for further rehabilitation.