<qa>  What is the site of tumour?Pathology includes the site of tumour, TNM staging, ACPS staging, length of resected colon, proximal clearance, distal clearance, number of nodes obtained, tumour differentiation, venous invasion, perineal invasion and histological type. Adjuvant chemotherapy if planned is noted. Patients in the study may be entered into an adjuvant chemotherapy trial following surgery provided the subsequent trial does not have radiation as a component of therapy and that the chemotherapy trial allows entering of patients from both surgical arms of the study. Follow up is quarterly for the first year, 6 monthly for year two and three and then annually until year five. At follow up wounds are check for any evidence of recurrence. A colonoscopy is performed 12 months following resection and then every three years following that if negative. Chest xray, abdominal CT or liver ultrasound, a complete blood picture are performed if clinically indicated, CEAs performed six monthly. 