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https://radiopaedia.org › articles › variant-anatomy-of-the-aortic-arch
Variant anatomy of the aortic arch occurs when there is failure of normal aortic development It results in a number of heterogenous anomalies of the aorta and its branch vessels

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The term bovine arch is widely used to describe a common anatomic variant of the human aortic arch pattern and consist in a common origin of the innominate artery and left common carotid artery

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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

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Bovine arch is considered the most common variant of the aortic arch and occurs when the brachiocephalic artery shares a common origin with the left common carotid artery

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The aortic arch has a bovine configuration where the left common carotid and brachiocephalic arteries arise from a common trunk In addition the left vertebral artery arises from the aortic arch between

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Bovine arch is a common anatomical variant and is usually asymptomatic However in rare cases such as during tracheostomy it may increase the risk of vascular injury and associated complications

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Bovine arch is the most common variant anatomy of the aortic arch with an incidence of about 15 20 in the literature Sometimes termed truncus bicaroticus refers to the origin of the left common

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It is relatively common present in 8 27 of the population and is generally found incidentally as it is asymptomatic most of the time In this case the patient had a CT Angiogram for a vascular risk

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The bovine aortic arch describes the most common variant of the aortic arch in humans It is found in an estimated 27 of the population with various subtypes 1