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Updated: Jun 26, 2026

Middle Cerebral Artery Occlusion Allowing Reperfusion via Common Carotid Artery Repair in Mice
Published on: January 23, 2019
[Painful incomplete third-nerve palsy caused by an internal carotid-communicating posterior artery aneurysm]
M I Pérez-Flores1, M Velasco-Casares, J Lorenzo-Carrero
1Servicio de Oftalmología, Hospital POVISA, C/. Salamanca 5, Vigo (Pontevedra), Spain. mari-nes@eresmas.net
Clinical Case:
A 38-year-old woman presented acute-onset, painful incomplete third-nerve palsy caused by an internal carotid-posterior communicating artery (IC-PC) aneurysm. We describe the differential diagnosis with Tolosa-Hunt syndrome and the results after endovascular treatment.
Discussion:
The presence of pupil-sparing third-nerve palsy may not exclude the presence of an IC-PC aneurysm and orbital magnetic resonance imaging and/or computed tomography imaging must be performed in these cases. The prompt recovery after endovascular treatment is consistent with previous reports.
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