Scapuloperoneal spinal muscular atrophy

What is Scapuloperoneal spinal muscular atrophy?

A rare, genetic motor neuron disease characterized by predominantly motor axonal peripheral neuropathy manifesting with progressive scapuloperoneal muscular atrophy and weakness, laryngeal palsy, congenital absence of muscles, and, in some, skeletal abnormalities.

Other condition names

  • Neurogenic scapuloperoneal amyotrophy, New England type
  • Scapuloperoneal neuronopathy

Inheritance type

Autosomal dominant


  • Worldwide: <1 in 1,000 000

Age of Onset

  • Childhood
  • Infancy
  • Neonatal
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on "". Data version 1.3.16 / 4.1.7.