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Rev Gastroenterol Mex. 2013 Jan-Mar;78(1):52-4. doi: 10.1016/j.rgmx.2012.09.002. Epub 2013 Jan 30.

[Basal cell carcinoma of the perianal region: a case report and literature review].

[Article in Spanish]

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Subespecialidad Cirugía de Colon y Recto INCMNSZ, México, Distrito Federal, México.


The literature reports an annual incidence of 5,900 cases of anal cancer in the developed countries. These involve three different anatomic zones: carcinoma of the anal canal, perianal carcinoma (formerly known as carcinoma of the anal margin, located at a distance of less than 5cm from the anal margin), and carcinoma of the perianal skin (at a distance greater than 5cm from the anal margin). Basal cell carcinoma of the perianal region is an uncommon tumor (0.27% of all diagnosed basal cell carcinomas) that in the majority of cases is treated by resection with disease-free margins. It must be differentiated from the basaloid and epidermoid variants of carcinoma, given that it has good outcome and its spread potential is practically null.

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