title: The hidden arch.
authors.affiliation: Respiratory Department, Gómez Ulla Defense Central University Hospital, Madrid, Spain. fvillegasf@telefonica.net
authors.forename: Francisco
authors.initials: F
authors.lastname: Villegas
authors.forename: Marcos
authors.initials: M
authors.lastname: Zuil
authors.forename: Pilar
authors.initials: P
authors.lastname: Bailón
mesh_terms: D000328:Adult; D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000000981:diagnostic imaging; D004417:Dyspnea / Q000209:etiology*; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D014057:Tomography, X-Ray Computed