A carcinoma spinocellulare developed from a poroma folliculare.
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000473:pathology; D005153:Facial Neoplasms / Q000209:etiology* / Q000473:pathology; D005499:Folliculitis / Q000150:complications*; D006801:Humans; D007642:Keratosis / Q000150:complications*; D008297:Male