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- Izumi Aida, Tetsuo Ozawa, Hidehiko Fujinaka, Kiyoe Goto, Kentaro Ohta, and Takashi Nakajima.
- Department of Neurology, National Hospital Organization Niigata National Hospital, Japan.
- Intern. Med. 2021 Dec 15; 60 (24): 3963-3967.
AbstractAutosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is a rare progressive neurodegenerative disease caused by either homozygous or compound heterozygous mutations in the SACS gene. The original ARSACS cases found in Quebec showed very homogenous phenotypes characterized by cerebellar ataxia, spasticity, and polyneuropathy. However, many cases with atypical phenotypes have been found in other regions and ethnic groups. We herein present a Japanese patient with atypical ARSACS who showed cerebellar ataxia and polyneuropathy, but no spasticity. She carried novel compound heterozygous mutations (p.Lys4326Glu and p.Leu1412Lysfs*16) in the SACS gene. The brain MRI findings were useful for making a diagnosis of ARSACS.
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