Cleidocranial dysplasia is a rare autosomal dominant hereditary disease that mainly affects the skeletal and dental development and has an incidence rate of about 1∶1 000 000. In this study, a case of cranio-clavicular dysplasia was reported, and related literature was reviewed. RUNX2 6p21.1 NM_001024630.3 Exon4 c.534dupAp.(Val179fs) was identified to be a new frameshift mutation by gene analysis.
