title: Upper lobe cavitary mass in a steroid-dependent asthmatic patient.
authors.affiliation: Section of Pulmonary Medicine, Lahey Clinic Medical Center, Burlington, MA.
authors.forename: A W
authors.initials: AW
authors.lastname: Gray
authors.forename: F J
authors.initials: FJ
authors.lastname: Martinez
authors.forename: J M
authors.initials: JM
authors.lastname: Streitz
authors.forename: C G
authors.initials: CG
authors.lastname: Dedrick
mesh_terms: D000368:Aged; D001249:Asthma / Q000000981:diagnostic imaging* / Q000188:drug therapy; D003937:Diagnosis, Differential; D006801:Humans; D008168:Lung / Q000098:blood supply* / Q000000981:diagnostic imaging; D008297:Male; D011241:Prednisone / Q000627:therapeutic use; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography
chemical_list: D011241:Prednisone