Aortic arch anomalies classifications
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] Keri Shafer, M.D. [3] Priyamvada Singh, MBBS [[4]]
Assistant Editor-In-Chief: Kristin Feeney, B.S. [[5]]
Overview
Classifications
There are three common classifications to the branching pattern: [1]
- Normal (as below) - seen in ~ 70% of patients.
- Bovine arch - common origin of brachiocephalic and left common carotid artery - seen in approximately 15% of patients (more common in blacks)
- Left common carotid has its origin from the brachiocephalic artery proper, rather than from a common trunk - - seen in approximately 10% of patients (also more common in blacks)
There may be additional branches that arise directly from the arch. These include:
- Thyroidea ima artery, usually between the brachiocephalic and left common carotid
- Left vertebral artery, usually between the left common carotid and the left subclavian arteries.
- Rarely the right subclavian and right common carotid arise independently.
Other major classifications:
Double Aortic Arch
Bovine Arch
Interrupted Aortic Arch
References
- ↑ K.F. Layton "Bovine Aortic Arch Variant in Humans: Clarification of a Common Misnomer" AJNR 27: August 2006, 1541-42