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Classification and external resources
Specialty medical genetics
DiseasesDB 31424
MeSH D004413

A dysostosis is a disorder of the development of bone, in particular affecting ossification.[1]

Examples 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).[2]

When the disorder involves the joint between two bones, the term synostosis is often used.


  1. ^ "dysostosis" at Dorland's Medical Dictionary[dead link]
  2. ^ Offiah AC, Hall CM (March 2003). "Radiological diagnosis of the constitutional disorders of bone. As easy as A, B, C?". Pediatr Radiol. 33 (3): 153–61. doi:10.1007/s00247-002-0855-8. PMID 12612812.