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). CONCLUSIONS: CCD is under-recognized in ataxic hemiparesis and may have implications for functional recovery after this type of ischemic stroke.
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). CONCLUSIONS:CCD is under-recognized in ataxic hemiparesis and may have implications for functional recovery after this type of ischemic stroke.
Authors: K M Kang; C-H Sohn; B S Kim; Y I Kim; S H Choi; T J Yun; J-h Kim; S-W Park; G J Cheon; M H Han Journal: AJNR Am J Neuroradiol Date: 2015-07-30 Impact factor: 3.825
Authors: D D M Lin; J T Kleinman; R J Wityk; R F Gottesman; A E Hillis; A W Lee; P B Barker Journal: AJNR Am J Neuroradiol Date: 2009-02-04 Impact factor: 3.825