Polypoid Basal Cell Carcinoma on the Perianal Region: A Case Report and Review of the Literature

摘要: We report the case of an 88-year-old Japanese woman with polypoid BCC on perianal region. The basaloid, solid aggregations were limited to upper middle part area. A review English and literature that excluded cases fibroepithelioma Pinkus found 21 total in which could be recognized as a variant nodular BCC. following points used categorize lesions: 1) characteristic appearance often mimics clinically benign or malignant adnexal neoplasms, melanocytic nevus, melanoma; 2) peculiar favorable locations such scalp (23.8% cases), genital area back-buttock areas (19% cases). These suggest etiologic factors other than ultraviolet radiation exposure are involved cases. may also main reason why type BCCs frequently manifest appearance, because these types have similar preferred sites areas. Polypoid appear affect more women men do (7 14 women). Although large average size, they not considered aggressive lesions well-circumscribed growth patterns non-infiltrative.