Dystonic posturing with athetoid movements in stroke without thalamic lesion

Complex hyperkinetic movement disorders are a rare complication of stroke, frequently involving posterolateral contralateral thalamic lesions. One of the proposed mechanisms for these presentations is proprioceptive impairment, hence not involving deregulation of the basal ganglia-thalamocortical ci...

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Veröffentlicht in:BMJ case reports 2023-01, Vol.16 (1), p.e248977
Hauptverfasser: Ferreira, Axel, Carvalho, Vanessa, Coelho, Paulo Simões
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Sprache:eng
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Zusammenfassung:Complex hyperkinetic movement disorders are a rare complication of stroke, frequently involving posterolateral contralateral thalamic lesions. One of the proposed mechanisms for these presentations is proprioceptive impairment, hence not involving deregulation of the basal ganglia-thalamocortical circuits. We report a patient who presented with dystonic posturing and athetoid movements with onset 2 years after right frontoparietotemporal stroke. Brain MRI showed no thalamic lesion. Based on the phenomenology, a diagnosis of pseudochoreoathetosis was proposed. To our knowledge, this is the first case report of poststroke pseudochoreoathetosis without thalamic involvement.
ISSN:1757-790X
1757-790X
DOI:10.1136/bcr-2022-248977