From the case:
Bovine arch (illustration)
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So-called "bovine arch" where there is a common origin of the brachiocephalic trunk and left common carotid artery.
Case Discussion
This common variant of aortic arch branching pattern is commonly called a "bovine arch" but this is a misnomer as the branching pattern of ruminant animals (e.g. cattle, buffalo) is not this pattern.