Aortic arch aneurysm

Last revised by Jeremy Jones on 28 Jul 2023

An aortic arch aneurysm is a less common form of thoracic aortic aneurysm and may account for around 10% of such aneurysms.

Aortic arch aneurysms have a recognized male predilection, with most patients presenting around the 6th to 7th decades of life.

It can be clinically silent, and patients can present with complications such as cerebral injury and/or a catastrophic vascular event, especially if it involves vessels supplying to the head, neck, and upper limbs.

As with other thoracic aneurysms, atherosclerosis remains the commonest etiology. 

Other associations include:

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Cases and figures

  • Case 1
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  • Case 2
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  • Case 3: multifocal
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