Colectomy (total or subtotal) is not the operation of choice for elective colonic cancer unless the patient is under 50 years of age, is undergoing curative resection, and has associated adenomatous polyps. Routine colectomy is not supported when a partial obstruction prevents preparation of the colon and interferes with proximal colonic examination. Colectomy (especially subtotal) is acceptable for the acutely obstructed colon but it is technically demanding and requires experience in patient selection