Skeletal deformities (platyspondyly, kyphosis, scoliosis, pectus carinatum, genu valgum, long bone deformities) become more pronounced as the child grows.
Clinical features include short trunk dwarfism, dysostosis multiplex, progressive spinal deformity, short neck, pectus carinatum, genu valgum, pes planus, and odontoid hypoplasia
Genu valgum. Gait abnormalities. Corneal clouding. Differential diagnosis Multiple epiphyseal dysplasia. Other mucopolysaccharidoses.