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