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  • Title: Focal dystonia in a case of SYNE1 spastic-ataxia: Expanding the phenotypic spectrum.
    Author: Holla VV, Surisetti BK, Prasad S, Pal PK.
    Journal: Parkinsonism Relat Disord; 2021 Jun; 87():22-24. PubMed ID: 33933852.
    Abstract:
    Synaptic nuclear envelope protein-1 (SYNE1) related cerebellar ataxia also called ARCA1 or SCAR8, manifests as a relatively pure cerebellar ataxia or with additional neurological involvement. Dystonia is rarely seen in SYNE1 ataxia and to the best of our knowledge, there are only three reports of dystonia in patients with SYNE1 ataxia. This report describes a 22-year-old woman with chronic progressive spastic-ataxia of 3-year duration with additional focal dystonia of the right upper limb. Patient had cerebellar atrophy on MRI brain and a novel pathogenic homozygous variant in exon 74 of the SYNE1 gene (p.Gln4047Ter).
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