Figure 4.

Mucopolysaccharide (MPS) Type IV. A 6-year-old male has developmental delay and short stature. He has normal intelligence and no neurological deficit. He has received supportive physiotherapy and occupational therapy and is currently in a static course of disease. (a) Frontal chest radiograph shows thick ribs (black arrowhead) and hypoplastic glenoids fossae (white arrow). (b) Anteroposterior radiograph of the pelvis and thighs showing bilateral flared iliac wings, flattened acetabular roofs (black arrowhead) and dysplastic femoral epiphyses (white arrowhead). (c) Lateral radiograph of the spine showing platyspondyly and central beaking of the vertebrae (arrowhead).