[…] skeletal features are distinguished by a disproportional short stature, odontoid hypoplasia, spinal cord compression, tracheal obstruction, pectus carinatum, kyphoscoliosis, platyspondyly
[ncbi.nlm.nih.gov]
The most common bony changes were hypo/dysplastic odontoid; cervical platyspondyly with anterior inferior beaking; thoracic posterior end plate depressions and lumbar posterior
[ncbi.nlm.nih.gov]
Characteristic findings included hypoplasia of odontoid peg, universal platyspondyly gibbus, and kyphosis of the dorsal region with widening of disc spaces.
[sajr.org.za]