<unk> <unk>  is a very rare neurodegenerative genetic disorder that primarily affects people from the<unk>  and<unk> –Lac-Saint-Jean regions of Quebec or descendants of native settlers in this region. This disorder has also been demonstrated in people from various other countries including India, Turkey, Japan, the Netherlands, Italy, Belgium, France and Spain. The prevalence has been estimated at 1 in 1,900 in Quebec, but it is very rare elsewhere.
Autosomal recessive spastic ataxia of Charlevoix-Saguenay
Spinal muscular atrophy with lower extremity predominance 1
Spinal muscular atrophy with lower extremity predominance 2A
Autosomal recessive cerebellar ataxia type 1
Jokela type spinal muscular atrophy
Madras motor neuron disease
Spinal muscular atrophy with lower extremity predominance 2B
X-linked spinal muscular atrophy type 2