An unusual cause for a colonic stricture: a case of Mycobacterium xenopi mimicking malignancy.

Colonic strictures are very common and are a frequent finding on double contrast barium examination; they very often reflect the presence of malignancy, diverticular disease, ischaemia, inflammatory bowel disease, and rarely mycobacterial disease. A case of mycobacterial disease mimicking malignancy is presented; this was due to a rare mycobacterial subtype and there was complete resolution of symptoms with antimycobacterial therapy.