Hartnup disorder

Disease	Injury	Nutrition	Poison

Special Topic	Surgery	Symptoms	Test

Hartnup disorder

Symptoms:

Skin rash, usually on exposure to sunlight
Widely spaced episodes of uncoordinated movement (rare)
Mood changes and psychiatric disease (rare)
Neurologic problems, such as abnormal muscle tone

Signs and tests:

A urinalysis that checks for elevated levels of "neutral" amino acids and normal levels of other amino acids may be done for this disorder. A genetic test may become available soon.

Review Date: 11/8/2002
Reviewed By: David G. Brooks, M.D., Ph.D., Division of Medical Genetics, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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