mucopolysaccharidosis in which there are deficiency of α-
l-iduronidase, accumulation of an abnormal intracellular material, and excretion of dermatan sulfate and heparan sulfate in the urine; with severe abnormality in development of skeletal cartilage and bone, with dwarfism, kyphosis, deformed limbs, limitation of joint motion, spadelike hands, corneal clouding, hepatosplenomegaly, mental retardation, and gargoylelike facies; autosomal recessive inheritance, caused by mutation in the α-
l-iduronidase gene (
IDUA) on 4p.
See also:
mucolipidosis.