We present a 4-year-old girl with persistent anterior fontanelle and narrow sloping shoulders. The X-ray imaging revealed widely open anterior fontanelle, supernumerary teeth, and absence of clavicles. Therefore, the diagnosis was cleidocranial dysplasia, which is a rare autosomal dominant skeletal disease, caused by the mutation in the gene on 6p21 encoding transcription factor CBFA1 (runt-related transcription factor 2-RUNX2). The girl remains under close surveilance, her anterior fontanelle closed spontaneously at the age of 9 years.

Department of Pediatrics Klatovy Hospital Klatovy Czech Republic

Department of Pediatrics Pardubice Hospital Pardubice Czech Republic

General Pediatrician Practitioner Holice Czech Republic

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