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KMID : 1235520090080020147
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Research in Vestibular Science
2009 Volume.8 No. 2 p.147 ~ p.151
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A Case of Anterior Inferior Cerebellar Artery Infarction Initially Presented a Sudden Sensorineural Hearing Loss with a Normal Diffusion-weighted Brain MRI
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Kim Han-Shin
Kim Chang-Woo
Oh Jeong-In
Park Moon-Il
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Abstract
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A sudden hearing loss with vertigo may originate from vascular insufficiency and sometimes presents as a prodrome of anterior inferior cerebellar artery infarction. Here we describe the case of a 48-year-old male patient who presented with a sudden onset of hearing loss in his right ear and severe, whirling type dizziness without associated neurological signs or symptoms. The diffusion-weighted magnetic resonance imaging (MRI) was normal on initial presentation, but 4 weeks after the onset of symptoms, the patient developed ipsilateral facial paralysis and dysarthria. A follow-up MRI revealed acute infarction in the territory of the anterior inferior cerebellar artery, involving the right lateral pons, right middle cerebellar peduncle, and inferolateral cerebellum.
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KEYWORD
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Sudden hearing loss, MRI, Infarction, Anterior inferior cerebellar artery
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