Abstract
Cleidocranial dysplasia (CCD) is an autosomal-dominant skeletal dysplasia syndrome that is characterized by widely patent calvarial sutures, clavicular hypoplasia, supernumerary teeth, and short stature. It is caused by mutations of the transcription factor RUNX2, which is known as a major regulator of bone differentiation. To report on 3 Chinese pediatric cases of CCD with an emphasis on the clinical presentation and diagnostic modalities. 3 Chinese children were admitted to our hospital because of short stature. All the children had hypoplastic clavicles, absent calvarium, open fontanel, and messy palmprint. Screening laboratory test results for bone mineral density, free thyroxine, and thyroid stimulating hormone were all normal. One child had mental retardation. Two were hereditary, and 1 was sporadic. These results showed that CCD should be suspected in patients with short stature and poor clavicles, calvarium, or teeth. Timely recognition and hereditary tendency counseling is required and useful.
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