title: Histiocytosis X presenting as a primary penile lesion.
mesh_terms: D002675:Child, Preschool; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D010409:Penile Diseases / Q000175:diagnosis*; D012871:Skin Diseases / Q000150:complications / Q000175:diagnosis / Q000473:pathology