%0 Case Reports
%T Compound Heterozygous VPS13A Variants in a Patient with Neuroacanthocytosis: A Case Report and Review of the Literature.
%A Kim A
%A Chae HY
%A Park HS
%J Lab Med
%V 53
%N 4
%D Jul 2022 4
%M 35075478
%F 1.865
%R 10.1093/labmed/lmab124
%X Chorea-acanthocytosis (ChAc) is a rare autosomal recessive neurodegenerative disorder caused by pathogenic variants of the vacuolar protein sorting 13A (VPS13A). Only a few patients with ChAc have been reported to date, and the variant spectrum of VPS13A has not been completely elucidated. We describe the case of a 36-year-old woman who had been experiencing orofacial dyskinesia since age 30 years. In a genetic study using next-generation sequencing, 2 variants of VPS13A, the nonsense variant c.4411C>T (p.Arg1471Ter) and the splicing variant c.145-2A>T, were identified. The splicing variant c.145-2A>T was newly classified as a pathogenic variant through a literature review. Consequently, the patient was diagnosed with ChAc based on the typical clinical manifestations, laboratory findings, and imaging results.