Isolated ipsilateral abducens nerve palsy and contralateral homonymous hemianopsia associated with unruptured posterior cerebral artery aneurysm: A rare neurological finding
10.7461/jcen.2024.E2023.07.002
- Author:
Sandeep MISHRA
1
;
Saurav MISHRA
;
Sabina REGMI
;
Kanwaljeet GARG
;
Shailesh GAIKWAD
Author Information
1. Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
- Publication Type:Case Report
- From:Journal of Cerebrovascular and Endovascular Neurosurgery
2024;26(3):318-323
- CountryRepublic of Korea
- Language:English
-
Abstract:
Cranial nerve palsies can be presenting signs of intracranial aneurysms. There is a classic pairing between an aneurysmal vessel and adjacent nerves leading to cranial neuropathy. Isolated abducens nerve palsy can be a localizing sign of an unruptured vertebrobasilar circulation aneurysm. Aneurysms involving Anterior Inferior Cerebellar Artery (AICA) and Posterior Inferior Cerebellar Artery (PICA) have been reported to be associated with abducens nerve palsy. The symptoms in unruptured aneurysms are due to the mass effect on adjacent neurovascular structures. Most of the abducens nerve palsy resolves following microsurgical clipping. Here, we present a rare case of an unruptured Posterior Cerebral Artery (PCA) aneurysm presenting with abducens nerve palsy and diplopia associated with contralateral hemianopsia which markedly improved following endovascular coil embolization.
