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Ruptured posterior cerebral artery aneurysm presenting with a contralateral cranial nerve III palsy: A case report
Nauman S Chaudhry1, Denise Brunozzi1, Sophia F Shakur1
1Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois, USA.
Background:
Posterior cerebral artery aneurysms can frequently present with an ipsilateral cranial nerve III palsy.
Case Description:
We report the first case of a posterior cerebral artery aneurysm associated with a contralateral cranial nerve III palsy. A 64-year-old male presented with acute subarachnoid hemorrhage, Hunt and Hess grade 3, and a left-sided fixed and dilated pupil. Computed tomography scan showed hemorrhage, mainly within the left basal cisterns. Digital subtraction angiography revealed a right-sided P1-P2 junction aneurysm.
Conclusions:
This case demonstrates that, although the neurological exam can help pinpoint the location of a lesion, false localizing signs should be recognized.
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