Tags: Disease.
A dysostosis is a disorder of the development of bone in particular affecting ossification.• These are classified into 3 groups• They are due to altered blastogenesis occurring during the 1st 6 weeks of life ▶ previously normal bones will remain so which is unlike an osteochondrodysplasia ▶ more than 1 bone may be involvedExamples include craniofacial dysostosis Klippel-Feil syndrome and Rubinstein-Taybi syndrome.It is one of the two categories of constitutional disorders of bone (the other being osteochondrodysplasia).When the disorder involves the joint between two bones the term synostosis is often used.