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Stroke. 2006;37:e1-e2
Published online before print November 23, 2005, doi: 10.1161/01.STR.0000195179.93268.e2
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(Stroke. 2006;37:e1.)
© 2006 American Heart Association, Inc.

Short Communication

Ataxic Hemiparesis From Strategic Frontal White Matter Infarction With Crossed Cerebellar Diaschisis

Alexander C. Flint, MD, PhD; MaryAlice C. Naley, MD Clinton B. Wright, MD

From the Neurological Institute of New York, Columbia University Medical Center, New York.

Correspondence to Clinton B. Wright, MD, MS, 710 W 168th St, NI-640, New York, NY 10032. E-mail cwright{at}neuro.columbia.edu

Background— Ataxic hemiparesis is a classic lacunar syndrome that most often localizes to the pons.

Results— We report 3 patients who presented with left-sided ataxic hemiparesis and were found on imaging to have small right frontal subcortical white matter infarcts in similar locations by diffusion-weighted MRI. [99mTc]hexamethylpropylenamine oxime single-photon emission computed tomography (SPECT) scans in all 3 patients showed decreased metabolism in the contralateral cerebellar hemisphere, indicative of crossed cerebellar diaschisis (CCD).

Conclusion— CCD is under-recognized in ataxic hemiparesis and may have implications for functional recovery after this type of ischemic stroke.


Key Words: ataxia • lacunar infarction • magnetic resonance imaging • tomography, emission computed • stroke




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