title: Histiocytosis X in a 27-year-old woman.
mesh_terms: D000328:Adult; D001706:Biopsy; D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008854:Microscopy, Electron; D012867:Skin / Q000473:pathology; D012871:Skin Diseases / Q000175:diagnosis* / Q000473:pathology