<prompt> Carcinoma Anal canal: Treatment of choice isChemoradiationRadiotherapy chemotherapy following APRRadiotherapyRadiotherapy APR  <response>: Treatment is by chemoradiotherapy in the first instance.Major ablative surgery is required if the above fails,Uncommon tumour, which is usually a squamous cell carcinoma Ref: Bailey Love;s Sho Practice of Surgery,E25,Page-1269 