Keywords: dystonia; parkinsonism; fumaric aciduria; pediatric; inherited metabolic disorder EN dystonia parkinsonism fumaric aciduria pediatric inherited metabolic disorder 707 709 3 07/14/22 20220701 NES 220701 Inherited Metabolic Disorders (IMD) can present with different movement disorders, from infancy to adulthood. 1 Video Neurological examination showing bilateral lower limb dystonia at 6-years-old producing gait impairment which became progressively generalized and, at the age of 12 and 15, included elements of parkinsonism, hypotonia and myoclonus. Dystonia, parkinsonism, pediatric, fumaric aciduria, inherited metabolic disorder. [Extracted from the article]