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Related Experiment Videos

Hemichorea and hemiballismus: recent concepts.

S P Lownie1, J J Gilbert

  • 1Department of Pathology (Neuropathology), University of Western Ontario, London, Canada.

Clinical Neuropathology
|January 1, 1990
PubMed
Summary

Severe hemichorea, a movement disorder, can cause acute pulmonary edema in elderly patients. This case highlights the link between neostriatum and thalamus lesions and these severe neurological symptoms.

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Area of Science:

  • Neurology
  • Neuroscience
  • Clinical Medicine

Background:

  • Hemichorea is a hyperkinetic movement disorder characterized by involuntary, irregular, and jerky movements.
  • Elderly patients with hypertension are at increased risk for cerebrovascular events.
  • Acute pulmonary edema can be a rare but severe complication of neurological emergencies.

Observation:

  • An elderly woman with a history of hypertension presented with severe hemichorea.
  • The patient developed acute pulmonary edema secondary to the movement disorder.

Findings:

  • Neuroimaging revealed small cystic infarctions in the neostriatum and thalamus contralateral to the hemichorea.
  • The subthalamic nuclei, crucial for motor control, were found to be intact.

Implications:

  • This case underscores the potential for basal ganglia lesions to cause severe motor disturbances and secondary complications like pulmonary edema.
  • The findings contribute to understanding the neuroanatomic basis of hemichorea and its clinical manifestations.

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