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Huntington disease
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Huntington disease

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Contributors: Jamie Adams MD
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Synopsis

An autosomal dominant neurodegenerative disorder that results from an abnormal CAG repeat expansion in the huntingtin (HTT) gene on chromosome 4. Clinical manifestations can begin at any age but typically occur before age 50. Signs and symptoms include chorea, dystonia, bradykinesia, rigidity, impaired eye movements, dysarthria, dysphagia, ataxia and difficulty walking, cognitive decline, irritability, and psychiatric disease. Patients survive about 15-20 years from symptom onset.

For more information, see OMIM.

Codes

ICD10CM:
G10 – Huntington's disease

SNOMEDCT:
58756001 – Huntington's chorea

Differential Diagnosis & Pitfalls

Best Tests

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References

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Last Updated: 03/29/2017
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Huntington disease
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Huntington disease : Choreiform movements, Dystonia, Hyperreflexia, Hypotonia, Personality changes
Copyright © 2019 VisualDx®. All rights reserved.