Genetic analysis of 17 presumptively diagnosed patients revealed one case of ataxia with oculomotor apraxia type 1 (AOA1); one ataxia with oculomotor apraxia type 2 (AOA2); two types of autosomal dominant spinocerebellar ataxia (SCA5, SCA29); two CACNA1A-related ataxias; one microcephaly with or without chorioretinopathy, lymphedema, or mental retardation (MCLMR); and one autosomal dominant KIF1A-related disorder with intellectual deficit, cerebellar atrophy, spastic paraparesis, and optic nerve atrophy.The diagnostic yield was 58.8%.