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  • Title: Hemichorea as Presentation of Acute Cortical Ischemic Stroke. Case Series and Review of the Literature.
    Author: Carbayo Á, Sarto J, Santana D, Compta Y, Urra X.
    Journal: J Stroke Cerebrovasc Dis; 2020 Oct; 29(10):105150. PubMed ID: 32912504.
    Abstract:
    Hemichorea and other hyperkinetic movement disorders are a rare presentation of stroke, usually secondary to deep infarctions affecting the basal ganglia and the thalamus. Chorea can also result from lesions limited to the cortex, as shown in recent reports. Still, the pathophysiology of this form of cortical stroke-related chorea remains unknown. We report 4 cases of acute ischemic cortical strokes presenting as hemichorea, with the infarction being limited to the parietal and insular cortex in perfusion computed tomography scans and magnetic resonance imaging. These cases suggest potential dysfunction of pathways connecting these cortical regions with the basal ganglia.
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