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The authors report two patients with cerebellar infarctions in the territory of the medial branch of the posterior inferior cerebellar artery who had vertigo, spontaneous ipsilesional nystagmus, and contralesional truncal lateropulsion. Although one of the two patients had slight dysmetria, overall signs closely mimicked those of acute peripheral vestibulopathy. The authors suggest that interruption of nodulouvular inhibitory projections to vestibular nuclei may account for the vestibular signs. |
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