FGF14 (GAA) repeat expansion-associated Ataxia (SCA27B): Expanding the clinical and diagnostic spectrum from the first genetically confirmed case in Argentina.
E. Gatto
N. Rojas
M. Cesarini
Fabio Gabriel Franco
L. Schottlaender
P. Iruzubieta
M. Dicaire
D. Pellerin
B. Brais
Medicine
Abstract
Spinocerebellar ataxia 27B (SCA27B), caused by an FGF14 GAA repeat expansion, is an emerging cause of late-onset ataxia. We report the first genetically confirmed Argentinean case, initially misdiagnosed as alcoholic cerebellar degeneration. This case highlights diagnostic challenges, phenotypic heterogeneity, and the importance of genetic testing for this treatable disorder.