ARSB and mucopolysaccharidosis type 6: Mucopolysaccharidosis VI (MPS VI) or Maroteaux-Lamy syndrome (MIM # 253200) is an autosomal recessive lysosomal storage disorder described in 1963 by Dr. Pierre Maroteaux and Dr. Maurice Lamy [1] and determined by mutations in the arylsulfatase B (ARSB) gene located in chromosome 5 (5q13-5q14)[2].