Focal Ballismus (Right Arm) in a Boy with Wilson's Disease

Roshan Koul*, Priti Vijay, Rajeev Khanna, Seema Alam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Ballismus is defined as rapid, forceful, shaking or throwing involuntary movement of the extremities, mainly proximal parts. When it affects half of the body (upper and lower limbs on one side), it is called hemiballismus. If it affects one limb, it could be labeled as focal or one limb ballismus. Any lesion (vascular, trauma, tumor, deposition, and demyelination) in the subthalamic nucleus of the basal ganglia results in ballismus. A rare entity such as copper deposition in Wilson's disease can manifest as ballismus. We describe a boy with Wilson's disease with focal ballismus of the right arm.
Original languageEnglish
Article number2000086
Pages (from-to)204-206
Number of pages3
JournalJournal of Pediatric Neurology
Issue number3
Publication statusPublished - Jun 1 2021
Externally publishedYes


  • Wilson's disease
  • ballismus
  • chorea
  • dystonia

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Clinical Neurology


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