Truncal ataxia from infarction involving the inferior olivary nucleus.

Jae Hyun Park, Sookyung Ryoo, So Young Moon, Sand Won Seo, Duk L Na

Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2012 Aug

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Truncal ataxia in medullary infarction may be caused by involvement of the lateral part of the medulla; however, truncal ataxia in infarction involving the inferior olivary nucleus (ION) has received comparatively little attention. We report a patient with truncal ataxia due to medial medullary infarction located in the ION. A lesion in the ION could produce a contralateral truncal ataxia due to increased inhibitory input to the contralesional vestibular nucleus from the contralesional flocculus. Copyright © 2012 National Stroke Association. Published by Elsevier Inc. All rights reserved.

Citation

Jae Hyun Park, Sookyung Ryoo, So Young Moon, Sand Won Seo, Duk L Na. Truncal ataxia from infarction involving the inferior olivary nucleus. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. 2012 Aug;21(6):507-8