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单词 Cerebral aneurysm
释义

Cerebral aneurysm

英语百科

Intracranial aneurysm

Diagram of cerebral aneurysm.
The most common sites of intracranial saccular aneurysms.
A selection of Mayfield and Drake aneurysm clips ready for implantation.

An intracranial aneurysm (also called cerebral or brain aneurysm) is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel.

Aneurysms in the posterior circulation (basilar artery, vertebral arteries and posterior communicating artery) have a higher risk of rupture. Basilar artery aneurysms represent only 3%-5% of all intracranial aneurysms but are the most common aneurysms in the posterior circulation.

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