title: Idiopathic pulmonary fibrosis presenting as bilateral, ill-defined pulmonary densities.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D011241:Prednisone / Q000627:therapeutic use; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging* / Q000188:drug therapy; D011859:Radiography; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging
chemical_list: D011241:Prednisone