Abstract
A 79-year-old woman who developed bilateral paramedian midbrain-thalamic infarction manifested complete bilateral ophthalmoplegia resistant to caloric stimulation, indicating impairment of the vestibulo-ocular reflex (VOR). Previous reports have mentioned this phenomenon but have not explicitly reported the results of caloric testing. Why a lesion apparently confined to the upper brainstem should produce impairment of the horizontal VOR remains unexplained.
MeSH terms
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Aged
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Caloric Tests
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Fatal Outcome
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Female
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Humans
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Infarction, Posterior Cerebral Artery / complications*
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Infarction, Posterior Cerebral Artery / diagnostic imaging
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Infarction, Posterior Cerebral Artery / pathology
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Magnetic Resonance Imaging
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Mesencephalon / diagnostic imaging
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Mesencephalon / pathology*
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Ophthalmoplegia / complications*
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Ophthalmoplegia / diagnostic imaging
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Ophthalmoplegia / pathology
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Radiography
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Thalamus / diagnostic imaging
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Thalamus / pathology*