title: [Long-term survival in 3 cases of histiocytosis X].
mesh_terms: D000293:Adolescent; D005260:Female; D005500:Follow-Up Studies; D006646:Histiocytosis, Langerhans-Cell / Q000401:mortality / Q000473:pathology*; D006801:Humans; D008297:Male; D012867:Skin / Q000473:pathology; D012871:Skin Diseases / Q000401:mortality / Q000473:pathology*