SACS and Charlevoix-Saguenay spastic ataxia: Additional Chinese cases of SACS mutations were also detected in ARSACS patients, such as p.P3007S + p.H3392fs; p.W1367X [95], p.T1746fs)+ p.I4362R [96], E1898X+ Y4225D or p.S578X + p.M2697Q fs*4 [97].