Conditions / Genetic

autosomal recessive Segawa syndrome

info ยท Genetic

A dystonia that is characterized by onset in infancy of dopa-responsive dystonia and that has_material_basis_in homozygous or compound heterozygous mutation in the tyrosine hydroxylase gene (TH) on chromosome 11p15.

Signs and symptoms

  • Decreased CSF homovanillic acid concentration
  • Axial hypotonia
  • Delayed speech and language development
  • Parkinsonism
  • Hypokinesia
  • Mask-like facies
  • Gait ataxia
  • Limb dystonia
  • Rigidity
  • Motor delay

Also known as: autosomal recessive DOPA-responsive dystonia