VLDLR and aceruloplasminemia: In 2005 a 199 kb deletion including the VLDLR gene (very low density lipoprotein receptor) was described in 8 patients of the Hutterite population with an autosomal recessive syndrome of nonprogressive cerebellar ataxia, mental retardation, inferior cerebellar hypoplasia, and mild cortical gyral simplification [1].