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The symptoms and signs of colorectal cancer vary from the general population to primary care and in the referred population to secondary care. This review aims to address the diverse symptoms, signs and combinations with relevance to colorectal cancer at various points in the diagnostic pathway and tries to shed light on this complex and confusing area. A move towards a lower threshold for referral and increased use of diagnostics might be a more reliable option for early diagnosis.

Many series of this procedure report recurrence in up to 36 percent and significant complication in up to 19 percent of patients. Transanal endoscopic microsurgery has achieved recurrence rates of 2.8 percent and low complication rates but for economic reasons has failed to find a widespread role. This article demonstrates that large, villous tumors of the low and mid rectum can be simply and effectively treated by per-anal resection with recurrence rates equivalent to transanal endoscopic microsurgery.

Although pouch failure is more common, ileal pouch-anal anastomosis can be performed in the setting of colorectal cancer without significant impact on oncologic outcome or long-term ileal pouch-anal anastomosis function.