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Infantile-onset generalized dyskinesia with orofacial involvement

Disease definition

A rare hyperkinetic movement disorder characterized by delayed motor development and infantile onset of axial hypotonia and a generalized hyperkinetic movement disorder, principally with dyskinesia of the limbs and trunk, and facial involvement including orolingual dyskinesia, drooling, and dysarthria. Variable hyperkinetic movements may include a jerky quality, intermittent chorea and ballismus. Brain imaging is normal and cognitive performance is typically preserved.


Classification level: Disorder
  • Synonym(s):
    • Infantile-onset orofacial-trunk-limbs dyskinesia
  • Prevalence: <1 / 1 000 000
  • Inheritance: -
  • Age of onset: Infancy
  • ICD-10: G24.8
  • OMIM: 616921
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -
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