mucopolysaccharidosis type 2 mucopolysaccharidosis type 2, severe form MPSIIA mucopolysaccharidosis type 2, severe form MPS2A mucopolysaccharidosis type 2A GARD:0017118 MEDGEN:575246 Hunter syndrome type A mucopolysaccharidosis type II, severe form NANDO:2201173 NANDO:1200098 Orphanet:217085 iduronate 2-sulfatase deficiency type A MONDO:0016315 mucopolysaccharidosis type IIA Mucopolysaccharidosis type 2 (MPS2), severe form (MPS2S), is associated with a massive accumulation of glycosaminoglycans and a wide variety of symptoms including a rapidly progressive cognitive decline; it is most often fatal in the second or third decade. UMLS:C0342841 SCTID:73146005