title: The aortic diverticulum: a remnant of the partially involuted dorsal aortic root.
abstract: The aortic diverticulum, a large bulge on the lesser curvature of the aortic isthums, is an occasional variation found during thoracic aortography in patients with a left aortic arch and normal origin of the brachiocephalic arteries. Although it is commonly thought to be a remnant of the closed ductus arteriosus, the results of this study support the hypothesis that it is a remnant of the right dorsal aortic root.
authors.affiliation: Department of Radiology, Little Company of Mary Hospital, Torrance, CA 90503.
authors.forename: J H
authors.initials: JH
authors.lastname: Grollman
mesh_terms: D000293:Adolescent; D000328:Adult; D001013:Aorta, Thoracic / Q000002:abnormalities / Q000000981:diagnostic imaging; D001018:Aortic Diseases / Q000000981:diagnostic imaging* / Q000196:embryology; D002648:Child; D002675:Child, Preschool; D004240:Diverticulum / Q000000981:diagnostic imaging* / Q000196:embryology; D006801:Humans; D011859:Radiography; D012189:Retrospective Studies; D013348:Subclavian Artery / Q000002:abnormalities