title: Scrofula and tracheal obstruction. An unusual case of histiocytosis-X.
mesh_terms: D000402:Airway Obstruction / Q000209:etiology*; D002675:Child, Preschool; D006801:Humans; D008206:Lymphatic Diseases / Q000150:complications*; D008297:Male; D009333:Neck; D014135:Tracheal Stenosis / Q000209:etiology*; D014388:Tuberculosis, Lymph Node / Q000150:complications*