Conditions / Genetic

autosomal dominant distal hereditary motor neuronopathy 3

info ยท Genetic

An autosomal dominant distal hereditary motor neuronopathy that has_material_basis_in heterozygous mutation in the gene encoding heat-shock 27-kD protein-1 (HSPB1) on chromosome 7q11.23.

Signs and symptoms

  • EMG: neuropathic changes
  • Gait disturbance
  • Distal lower limb muscle weakness
  • Peripheral neuropathy
  • Paralysis
  • Paresis of extensor muscles of the big toe
  • Areflexia of lower limbs
  • Hyporeflexia of lower limbs

Also known as: HMN IIB; HMN2B; distal hereditary motor neuronopathy type 2B; distal hereditary motor neuropathy type IIB