title: Hemoptysis for investigation.
mesh_terms: D001842:Bone and Bones / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006469:Hemoptysis / Q000000981:diagnostic imaging*; D006646:Histiocytosis, Langerhans-Cell / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging / Q000209:etiology; D011859:Radiography