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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

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Accession:HP:0032005 term browser browse the term
Definition:Hemidystonia refers to dystonia which involves the ipsilateral face, arm, and leg.
Comment:In most cases of hemidystonia, a contralateral structural lesion of the basal ganglia or thalamus can be demonstrated by neuroimaging. Common aetiologies include stroke and trauma, and younger patients seem to have a greater propensity to develop hemidystonia after cerebral insults. There is often a latency between cerebral injury and the onset of dystonia. Hemidystonia may be preceded by ipsilateral hemiparesis which often resolves as hemidystonia develops.

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system physiology 0
          Abnormality of movement 0
            Dystonia 0
              Hemidystonia 0
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