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A diagnosis of HD depends more on family history as compared to investigative procedures such as Computed Tomography (CT), Magnetic Resonance Imaging (MRI), or Positron Emission Tomography (PET) and is confirmed with genetic testing.
The diagnosis can be confirmed by genetic testing for the abnormal huntingtin gene (spelled correctly). However, this test cannot give reliable information on the timing of appearance of symptoms or the progression of the disease. Genetic testing is presently not offered to people below 18 years of age and is questionable since a positive result may prove to be distressing and present a psychological strain that could lead to possible life changing consequences (12).
"A positive result in a child has implications for parents who may not wish to know whether they have the disease" (12).
Article by Kona Vishnu, MS
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