Persistent fifth arch anomalies - broadening the spectrum to include a variation of double aortic arch vascular ring.
Fifth arch anomalies are rare and complex and frequently misdiagnosed or mistaken for other entities. We report a double arch vascular ring that is thought to consist of right fourth arch and left fifth arch components, a previously undescribed persistent fifth arch variant. The currently recognized spectrum and classification of fifth arch vascular anomalies are expanded along with illustrative images to justify the proposed changes. Reviewing and expanding the classification of fifth arch anomalies to include a double arch ring variant will promote recognition, correct diagnosis and appropriate management of these anomalies.
Department of Radiology, Stanford Children's Hospital and Stanford University, 725 Welch Road, Stanford, CA, 94305, USA. bevn@stanford.edu.
Beverley
http://orcid.org/0000-0002-8140-1214
B
Newman
Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.
Kate
K
Hanneman
Department of Radiology, Stanford Children's Hospital and Stanford University, 725 Welch Road, Stanford, CA, 94305, USA.
Frandics
F
Chan
D001015:Aortic Arch Syndromes / Q000000981:diagnostic imaging* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn; D013908:Thoracotomy
Aortic anomaly; Computed tomography; Fifth arch; Infant; Vascular ring
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