title: Idiopathic azygos vein aneurysm: a rare cause of mediastinal mass.
abstract: Venous aneurysm of the azygos arch is a very rare cause of mediastinal mass and is usually an incidental finding on chest radiography. Nowadays the diagnosis is made by non-invasive tests such as thoracic CT scanning and/or magnetic resonance imaging. The case is described of an asymptomatic woman in whom a mediastinal mass due to an azygos vein aneurysm was diagnosed by non-invasive procedures, the aetiology of which, in all probability, was idiopathic.
authors.affiliation: Pulmonary Department, Consorci Hospitalari del Parc Taulí, Sabadell, Barcelona, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Gallego
authors.forename: R M
authors.initials: RM
authors.lastname: Mirapeix
authors.forename: E
authors.initials: E
authors.lastname: Castañer
authors.forename: C
authors.initials: C
authors.lastname: Domingo
authors.forename: J M
authors.initials: JM
authors.lastname: Mata
authors.forename: A
authors.initials: A
authors.lastname: Marín
mesh_terms: D000783:Aneurysm / Q000000981:diagnostic imaging*; D001401:Azygos Vein / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008477:Mediastinal Diseases / Q000000981:diagnostic imaging; D008875:Middle Aged; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed