title: Oral histiocytosis X--a case report.
mesh_terms: D000328:Adult; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology*; D006801:Humans; D008297:Male; D009059:Mouth Diseases / Q000473:pathology*; D010510:Periodontal Diseases / Q000473:pathology