has modifier Autosomal recessive inheritance cerebellar ataxia hereditary ataxia eye degenerative disease autosomal recessive disease autosomal recessive cerebellar ataxia Autosomal recessive cerebellar ataxias (ARCA) are a heterogeneous group of rare neurological disorders involving both the central and peripheral nervous system (and in some cases other systems and organs), and characterized by degeneration or abnormal development of the cerebellum and spinal cord and, in most cases, early onset occurring before the age of 20 years. DOID:0050950 MONDO:0015244 OMIMPS:213200 Orphanet:1172 UMLS:CN226644 arca cerebellar ataxia, autosomal recessive neuro-ophthalmological disease inherited tremor disorder ataxia with dementia cerebellar degeneration