Metachromatic Leukodystrophy, Juvenile Form, also known as arylsulfatase a deficiency, juvenile form, is related to metachromatic leukodystrophy and leukodystrophy. An important gene associated with Metachromatic Leukodystrophy, Juvenile Form is ARSA (Arylsulfatase A), and among its related pathways/superpathways is Sphingolipid metabolism. Affiliated tissues include eye, and related phenotypes are dysarthria and muscle weakness