Patients with longstanding extensive colitis have an increased risk of developing colorectal cancer. The British Society of Gastroenterology has recently published revised guidelines for colitis surveillance, taking into account new evidence supporting chromoendoscopy and the endoscopic resection of certain neoplastic lesions. This article reviews some of the evidence behind this paradigm shift and gives a practical guide to chromoendoscopy.
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Competing interests MDR is co-author of BSG colitis surveillance guidelines.
Provenance and peer review Commissioned; externally peer reviewed.
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