Basal cell carcinoma at the base of cutaneous horn (cornu cutaneum).
D002280:Basal Cell Carcinoma / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D007642:Keratosis / Q000150:complications* / Q000473:pathology; D008875:Middle Aged; D012878:Skin Neoplasms