Spinocerebellar ataxia with axonal neuropathy type 2 (Orphanet_64753, an Orphanet rare-disease nomenclature identifier) or ataxia-oculomotor apraxia type 2 (AOA2) is a form of autosomal recessive cerebellar ataxia (ARCA; see this term) characterized by progressive cerebellar ataxia, axonal sensorimotor neuropathy with oculomotor apraxia, fixation instability, extrapyramidal features and an elevated serum alpha-fetoprotein level. Also known as: AOA2, Ataxia - oculomotor apraxia type 2, SCAN 2, SCAR1.