John M. Skibber, MD

This paper consists of a review of the literature on carcinoma of the anal margin, as well as the authors' institutional experience with this uncommon malignancy. The authors offer recommendations for treatment based on the size of the tumor, which correlates with the T-stage from the TNM or Union Internationale Contre le Cancer (UICC) staging systems. They recommend radiation alone or local excision for T1 lesions, radiation and elective nodal irradiation for T2 lesions, and chemoradiation, including irradiation of the primary tumor and inguinal and pelvic nodes, for T3 and T4 lesions.