title: Malignant melanoma of the anus in a negro: report of a case and review of the literature.
mesh_terms: D001741:Black or African American; D000368:Aged; D001005:Anus Neoplasms / Q000175:diagnosis; D005260:Female; D006801:Humans; D008545:Melanoma / Q000175:diagnosis / Q000601:surgery; D012004:Rectal Neoplasms / Q000601:surgery