[Two cases of histiocytosis X of the lungs].
D000328:Adult; D003937:Diagnosis, Differential; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008297:Male; D011859:Radiography; D012907:Smoking / Q000009:adverse effects; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis / Q000188:drug therapy