title: Roentgenogram of the month. Exertional dyspnea and a widened mediastinum.
authors.affiliation: Department of Pulmonary Medicine, Cleveland Clinic Foundation.
authors.forename: S M
authors.initials: SM
authors.lastname: Krawtz
authors.forename: P
authors.initials: P
authors.lastname: O'Donovan
authors.forename: H P
authors.initials: HP
authors.lastname: Wiedemann
mesh_terms: D001011:Aorta; D001014:Aortic Aneurysm / Q000150:complications / Q000000981:diagnostic imaging*; D003251:Constriction, Pathologic / Q000209:etiology; D004417:Dyspnea / Q000209:etiology; D015444:Exercise; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008482:Mediastinum / Q000000981:diagnostic imaging; D008875:Middle Aged; D011651:Pulmonary Artery; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000209:etiology*