FXN and autosomal dominant cerebellar ataxia: The FGF14 GAA repeat expansion is the third such expansion associated with cerebellar ataxia to be identified in Cyprus, following the FXN GAA and RFC1 AAGGG repeat expansions both causing autosomal recessive diseases.26,27 Currently, SCA27B represents the predominant aetiology of ADCA within the Cypriot population.