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Results 1 - 2 of 2 for Neck hypertonia
  1. Hereditary hyperekplexia 
    ... can be fatal. Infants with hereditary hyperekplexia have hypertonia at all times, ... Rarely, infants with hereditary hyperekplexia experience recurrent ...
    https://medlineplus.gov/genetics/condition/hereditary-hyperekplexia - Genetics
  2. UNC80 deficiency 
    ... but affected individuals may have increased muscle tone (hypertonia) in the arms and legs. Most people with ... in people with UNC80 deficiency include a short neck, abnormal curvature of the spine (scoliosis), permanently bent ...
    https://medlineplus.gov/genetics/condition/unc80-deficiency - Genetics