Definition of Cleidocranial dysostosis:

Cleidocranial dysostosis is disorder involving the abnormal development of bones in the skull and collar (clavicle) area. The condition is passed down through families (inherited).

Causes, incidence, and risk factors:

Cleidocranial dysostosis is caused by an abnormal gene. It is passed down through families as an autosomal dominant trait. That means you only need to get the abnormal gene from one parent in order for you to inherit the disease.

Cleidocranial dysostosis is a congenital condition, which means it is present from before birth. The condition affects girls and boys equally.