FGF14 and pathologic nystagmus: Given the persistent dysphonia and nystagmus, genetic testing was conducted, revealing a deletion in FGF14 gene (exons 1–3), confirming a diagnosis of Spinocerebellar Ataxia 27 A (ARRAY ISCN: arr[GRCh38] 13q33.1(101732949_102278224)x1).