J Korean Bal Soc.  2008 Jun;7(1):77-80.

Eight-And-a-Half Syndrome in Pontine Infarction

Affiliations
  • 1Department of Neurology, Chonnam National University Medical School, Korea. nrshlee@chonnam.ac.kr

Abstract

Eight-and-a-half syndrome is a clinical syndrome with the combination of a one-and-a-half syndrome and an ipsilateral seventh cranial nerve palsy usually due to a paramedian pontine tegmental lesion. A 57-year-old man presented with dizziness, diplopia, and a left facial palsy. Ocular motor manifestations showed combined left conjugate horizontal gaze palsy and left internuclear ophthalmoplegia (one-and-a-half syndrome). In addition, he had a left lower motor neuron pattern of facial palsy. Brain MR images showed an acute infarction in the left paramedian pontine tegmentum.

Keyword

Eight-and-a-half syndrome; One-and-a-half syndrome; Facial palsy; Infarction; Pons
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