Differential diagnosis of chorea
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Published on: November 21, 2013
1Department of Neurology, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA. ruth.walker@mssm.edu
Insights
Chorea, a basal ganglia disorder, presents diagnostic challenges. Early identification is crucial for genetic counseling and future treatments, despite current supportive therapies.
Area of Science:
- Neuroscience
- Genetics
- Movement Disorders
Background:
- Chorea is a movement disorder affecting basal ganglia function.
- It stems from diverse structural, neurochemical, or metabolic issues.
- Diagnosis can be difficult, often leaving patients undiagnosed.
Purpose of the Study:
- To highlight the diagnostic challenges of chorea.
- To emphasize the importance of a correct diagnosis.
- To underscore the role of genetic advances.
Main Methods:
- Review of clinical presentation and diagnostic clues.
- Discussion of neuroimaging and laboratory testing.
- Integration of advances in genetic medicine.
Main Results:
- Chorea diagnosis relies on a comprehensive approach beyond simple phenotype.
- Family history, neurological exam, and tests are key.
- Genetic medicine is revealing new causes and expanding phenotypes.
Conclusions:
- Accurate chorea diagnosis is essential for patient management.
- It enables crucial genetic counseling.
- It paves the way for future targeted molecular therapies.
Abstract:
Chorea is a common movement disorder that can be caused by a large variety of structural, neurochemical (including pharmacologic), or metabolic disturbances to basal ganglia function, indicating the vulnerability of this brain region. The diagnosis is rarely indicated by the simple phenotypic appearance of chorea, and can be challenging, with many patients remaining undiagnosed. Clues to diagnosis may be found in the patient's family or medical history, on neurologic examination, or upon laboratory testing and neuroimaging. Increasingly, advances in genetic medicine are identifying new disorders and expanding the phenotype of recognized conditions. Although most therapies at present are supportive, correct diagnosis is essential for appropriate genetic counseling, and ultimately, for future molecular therapies.
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