PT - JOURNAL ARTICLE AU - Kalynn B Pressly AU - Emilie Hill AU - Kairav J Shah TI - Pseudomembranous colitis secondary to <em>methicillin-resistant Staphylococcus aureus</em> (MRSA) AID - 10.1136/bcr-2016-215225 DP - 2016 May 10 TA - BMJ Case Reports PG - bcr2016215225 VI - 2016 4099 - http://casereports.bmj.com/content/2016/bcr-2016-215225.short 4100 - http://casereports.bmj.com/content/2016/bcr-2016-215225.full AB - A 37-year-old woman with a history of type II diabetes and Crohn's disease, status postcholecystectomy, presented with a &gt;2-week history of cramping abdominal pain, nausea, non-bloody/non-bilious emesis and, later, diarrhoea. A flexible sigmoidoscopy was performed, revealing that ‘a segmental pseudomembrane was found from rectum to sigmoid colon’. Clostridium difficile PCR on the stool was repeated twice and resulted negative both times. A food history prior to onset of symptoms was consistent with Staphylococcal food poisoning and a stool culture was positive for heavy growth of methicillin-resistant Staphylococcus aureus and the absence of enteric flora. The patient was successfully treated with oral vancomycin.