Spastic ataxia Charlevoix-Saguenay type
From SNPedia
At a minimum, these SNPs are known to be related, and others may also be
SACS (or ARSACS) is a rare neuro-degenerative disease that afflicts French-Canadians from the Charlevoix and Saguenay-Lac-St-Jean regions of northeastern Quebec more frequently than other regions of the world, although it does occur in other regions.
The SACS gene plays a large role in this disease.