Metachromatic Leukodystrophy (MLD) is a rare, autosomal recessive lysosomal storage disorder caused by a deficiency in the enzyme arylsulfatase A (ARSA) [1, 2], which leads to the accumulation of sulfatides in both the central nervous system and peripheral nervous system [3]. This evidence concerns the gene ARSA and metachromatic leukodystrophy.