title: Malignant penile horn.
abstract: The fifth case of carcinoma within a penile horn is reported in a patient who also had erythroplasia of Queyrat of the glans penis. Penile horns should be considered as pre-malignant lesions, since a third of them undergo malignant change and they may be associated with a pre-malignant condition of the glans penis.
mesh_terms: D002278:Carcinoma in Situ / Q000150:complications / Q000473:pathology; D004919:Erythroplasia / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D010412:Penile Neoplasms / Q000150:complications / Q000473:pathology*