motor neuron disease +

amyotrophic lateral sclerosis +
anterior horn cell disease
lateral sclerosis
motor neuritis +
multisystem proteinopathy
nonparalytic poliomyelitis
progressive bulbar palsy +
progressive muscular atrophy
scapuloperoneal spinal muscular atrophy

adult spinal muscular atrophy
autosomal dominant adult-onset proximal spinal muscular atrophy
autosomal dominant distal hereditary motor neuronopathy +
autosomal recessive distal hereditary motor neuronopathy +
childhood spinal muscular atrophy +
Kennedy's disease
spinal muscular atrophy, Jokela type
spinal muscular atrophy with lower extremity predominant +
spinal muscular atrophy with progressive myoclonic epilepsy
X-linked distal spinal muscular atrophy 3
X-linked spinal muscular atrophy 2