J Korean Neurol Assoc.  2007 Aug;25(3):422-425.

A Case of Isolated Cerebellar Nodulus Infarction with Periodic Alternating Nystagmus and Unilateral Vestibulopathy

Affiliations
  • 1Department of Neurology, Chonbuk National University, Korea. ohsun0712@hanmail.net
  • 2Department of Neurology, Chungnam National University, Korea.
  • 3Department of Neurology, Seoul National University, College of Medicine, Korea.

Abstract

We report a patient with an isolated cerebellar nodulus infarction who presented with periodic alternating nystagmus (PAN), perverted head-shaking nystagmus (pHSN), and loss of tilt suppression of the vestibulo-ocular reflex (VOR). Several days after the initial symptoms resolved, the patient also presented with purely vestibular syndrome with vertigo, spontaneous horizontal nystagmus without the usual signs of cerebellar dysfunction. The chain of those symptoms were ascribed to ischemia of the cerebellar nodulus.

Keyword

Nodulus; Periodic alternating nystagmus (PAN); Unilateral vestibulopathy

MeSH Terms

Cerebellar Diseases
Humans
Infarction*
Ischemia
Nystagmus, Pathologic*
Reflex, Vestibulo-Ocular
Vertigo
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