J Korean Neurol Assoc.  2023 Feb;41(1):35-38. 10.17340/jkna.2023.1.5.

A Case of Anterior Communicating Artery Aneurysm Impending Rupture Presenting with Isolated Painful Adduction Palsy Mimicking Ischemic Internuclear Ophthalmoplegia

Affiliations
  • 1Department of Neurology, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea
  • 2Department of Neurosurgery, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea

Abstract

Anterior communicating artery (ACoA) aneurysms may rarely lead to oculomotor nerve palsy. We present here interesting cases in which isolated unilateral adduction paresis mimicking internuclear ophthalmoplegia (INO) was one of the symptoms of suspicious impending ruptured aneurysm of the ACoA. Careful neurologic examination is crucial for early discrimination with INO and oculomotor palsy.

Keyword

Aneurysm; Intracranial aneurysm; Ocular motility disorders
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