| A rare, genetic primary bone dysplasia characterized by disproportionate short stature with short, stiff neck and trunk and relatively long limbs, fingers and toes (which may present flexion contractures), severe vertebral body ossification delay (with frequent pycnodysostosis), markedly enlarged round epiphyses of the long bones, absent ossification of pubic bones and multiple pseudoepiphyses of the short tubular bones in hands and feet. Neurological manifestations resulting from cervical spine instability may be observed. |
