Disease or Syndrome
extrapyramidal disorder
[ ek-struh-pi-ram-i-dl dis-awr-der ]
Definitions related to extrapyramidal disorders:
  • A movement disorder caused by defects in the basal ganglia. The clinical manifestations include changes in the muscle tone, dyskinesia, and akinesia. Causes include vascular disorders, degenerative disorders, and antipsychotic drugs.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Defects in basal ganglia function; characterized by changes in muscle tone, poverty of voluntary movements (akinesia), or abnormal involuntary movements (dyskinesia).
    CRISP Thesaurus
    National Institutes of Health, 2006
  • A disorder characterized by abnormal, repetitive, involuntary muscle movements, frenzied speech and extreme restlessness.
    Common Terminology Criteria for Adverse Events
    U.S. National Institutes of Health, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.