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Mesh term Intracranial Aneurysm

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Aneurysm
Intracranial Arterial Diseases

Description

Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)



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jenkins-FCD Prod-486 e3098984f26de787f5ecab75090d0a28e7f4f7c0