title: Position-dependent mediastinal mass: aneurysm of the superior vena cava.
authors.forename: M A
authors.initials: MA
authors.lastname: Picou
authors.forename: R
authors.initials: R
authors.lastname: Antonovic
authors.forename: W E
authors.initials: WE
authors.lastname: Holden
mesh_terms: D000368:Aged; D000783:Aneurysm / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000000981:diagnostic imaging*; D011187:Posture; D011859:Radiography; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*