title: The ascending thoracic aorta stages a vanishing act?
authors.affiliation: Anesthesia (PSP, RAB) Service, the Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI. Electronic address: pspagel@mcw.edu.
authors.forename: Paul S
authors.initials: PS
authors.lastname: Pagel
authors.forename: Robert A
authors.initials: RA
authors.lastname: Biechler
authors.forename: G
authors.initials: G
authors.lastname: Hossein Almassi
mesh_terms: D000369:Aged, 80 and over; D000792:Angiography; D001011:Aorta / Q000000981:diagnostic imaging*; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging; D001015:Aortic Arch Syndromes / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D013575:Syncope / Q000150:complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
keywords: cardiac embryology; congenital heart disease; fourth pharyngeal arch; right aortic arch; thoracic imaging