peroxisomal acyl-CoA oxidase deficiency (MONDO_0009919) is a rare neurodegenerative disorder that belongs to the group of inherited peroxisomal disorders and is characterized by hypotonia and seizures in the neonatal period and neurological regression in early infancy. Also known as: ACOX1 deficiency, Pseudoadrenoleukodystrophy, peroxisomal acyl-coenzyme A oxidase, pseudo-NALD, pseudo-neonatal adrenoleukodystrophy.