title: Cutaneous adnexal squamous carcinoma.
abstract: A 46-year-old woman developed a squamous carcinoma of the skin that was treated with surgical excision followed by irradiation. The excised tumor showed no epidermal involvement; therefore, it was diagnosed as metastatic squamous carcinoma. However, a 4-year disease-free follow-up indicates that it represents a primary skin tumor. Since the exact histogenesis is unclear, this tumor is tentatively designated "cutaneous adnexal squamous carcinoma."
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D012626:Sebaceous Gland Neoplasms / Q000473:pathology*; D012871:Skin Diseases / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology / Q000556:secondary