To give an overview of the pathophysiology,
diagnostic workup and treatment of extracranial carotid artery aneurysms.
An aneurysm of the extracranial carotid artery is defined as a dilation of the carotid artery greater than 150% of the diameter of the common carotid artery or the uninvolved internal carotid artery. Aneurysms of the extracranial carotid artery are rare entities,
accounting for less than 1% of all peripheral artery aneurysms. They are usually unilateral (but can also be bilateral in extremely rare cases) and predominantly located in the internal carotid artery ( Fig. 1 ). 0 0 1 70 403 aaaaa 3...
Findings and procedure details
CLASSIFICATION OF EXTRACRANIAL CAROTID ARTERY ANEURYSMS Extracranial carotid artery aneurysmscan be divided into true and false aneurysms in relation to their pathophysiology. a.
True aneurysms True aneurysms involve all three layers of the arterial wall. They usually have a fusiform shape,
but sometimes are saccular.
Theyare mostly located along the course of the internal or common carotid artery,
and rarely at the carotid bulb. The most common cause is atherosclerosis.
Extracranial carotid artery aneurysms are relatively rare,
yet their features must be known by radiologists.
An accurate and comprehensive imaging evaluation of such lesions is key to a correct diagnosis and successful treatment planning.
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