RT Journal Article SR Electronic T1 A wolf in sheep's clothing JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr1120103492 DO 10.1136/bcr.11.2010.3492 VO 2011 A1 C M Bakker A1 M N Sosef A1 R A Vliegen YR 2011 UL http://casereports.bmj.com/content/2011/bcr.11.2010.3492.abstract AB Carcinoid tumours are often difficult to diagnose because of non-specific symptoms, mimicking those of irritable bowel disease of Crohn's disease. The authors describe a 57-year-old patient with clinical and radiological features, suggestive of Crohn's disease, in whom the diagnosis was proved to be a carcinoid tumour involving the terminal ileum. This case report illustrates that ileal carcinoid should be considered in the differential diagnosis of Crohn's disease, particularly in older patients.