Hunter syndrome, or mucopolysaccharidosis type II (MPS II), is a member of a group of inherited metabolic disorders together termed mucopolysaccharidosis (MPSs). It is a rare, X-linked disorder caused by a deficiency of the lysosomal enzyme iduronate-2-sulfatase. The prevalence of this syndrome is 1:100,000 births. Insufficient enzyme activity results in accumulation of glycosaminoglycans (GAGS...

Hurler syndrome also known as mucopolysaccharidosis type 1H (MPS-1H) or gargoylism is an autosomal recessive disorder due to defective gene which encodes for enzyme alpha L-iduronidase (IUDA) located on chromosome 4p16.3 (gene encoding protein iduronidase). In the present case, 4-year Down’s child with coarse facial features, hypothyroidism presented umbilical hernia. Clinical diagnosis of was ...