ISCHEMIC COLITIS AND COLORECTAL-CANCER - SOME PROBLEMS AND PITFALLS

Four cases out of 204 new cases of colorectal carcinoma seen in a 24 m onth period were proven to have concomitant proximal ischaemic colitis . Ischaemic colitis associated with obstructing carcinoma of the color ectum may present dramatically with gangrene or colonic perforation if the acute vascular insufficiency is severe. Less severe degrees of is chaemic insult must be recognised intra-operatively as the incorporati on of ischaemic colon in a colonic anastomosis may result in an anasto motic leak. Two other patients with ischaemic colitis were wrongly dia gnosed as colorectal carcinoma on colonoscopy. Endoscopic features of ischaemic colitis may mimic colonic carcinoma and endoscopic biopsy is essential where any doubt exist as to the possibility of ischaemic co litis so that unnecessary surgery may be avoided.