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Middle Cerebral Artery Bifurcation Aneurysm - Case 2

A 44 year-old woman developed the abrupt onset an explosive headache. On exam, she was obtunded with right sided weakness.

Show the Aneurysm

Cerebral angiogram, left internal artery injection. Note the large, bi-lobed aneurysm arising from the middle cerebral artery where it bifurcates into its superior and inferior divisions. This is one of the common locations for aneurysms.

Revised 05/01/06.
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