NCIt synonyms : Carcinoma of the Anal Margin; Carcinoma of Anal Margin; Perianal Skin Carcinoma;
NCIt related terms : Anal Margin Cancer;
NCIt definition : A carcinoma arising in the anal margin or perianal skin (below the anal verge and
involving the perianal hair-bearing skin). It includes basal cell and squamous cell
carcinoma. Anal margin carcinoma is staged as a skin carcinoma, separately from anal
canal carcinoma.;