title: Lichen sclerosus et atrophicus and perianal carcinoma: a case report.
mesh_terms: D000368:Aged; D001005:Anus Neoplasms / Q000209:etiology* / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000473:pathology; D005260:Female; D006801:Humans; D012871:Skin Diseases / Q000150:complications* / Q000473:pathology