There is also an overlap with several spinocerebellar ataxias (SCA1, SCA2, SCA3, SCA12), dentatorubral-pallidoluysian atrophy (DRPLA) and neuroferritinopathy (caused by mutations in the ferritin light chain gene) [4]. The gene discussed is ATXN3; the disease is dentatorubral-pallidoluysian atrophy.