 The squamous cell carcinoma SCC of the anal canal is an uncommon neoplasia which corresponds to 1-5 of intestinal tumors. However the risk of SCC of the anal canal has been growing recently. The standard treatment of anal cancer stage II-III is multimodal and consists of combined chemotherapy infusional 5-fluorouracil and mitomycin and radiotherapy. This scheme currently used was proposed in 1974, and since then no other effective treatment has been developed. 