Cleidocranial dysostosis
(Redirected from Cleidocranial Dysostosis)
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| Cleidocranial dysostosis | |
|---|---|
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| Synonyms | Cleidocranial dysplasia, Marie-Sainton syndrome |
| Pronounce | |
| Specialty | Medical genetics |
| Symptoms | Delayed closure of cranial sutures, absent clavicles, dental abnormalities |
| Complications | Hearing loss, scoliosis, respiratory issues |
| Onset | Congenital |
| Duration | Lifelong |
| Types | |
| Causes | Genetic mutation in the RUNX2 gene |
| Risks | |
| Diagnosis | Clinical examination, genetic testing |
| Differential diagnosis | Pycnodysostosis, osteogenesis imperfecta |
| Prevention | |
| Treatment | Orthodontic treatment, surgery |
| Medication | |
| Prognosis | Generally good with treatment |
| Frequency | 1 in 1,000,000 |
| Deaths | |
Cleidocranial dysostosis (CCD), also known as Cleidocranial dysplasia, is a rare genetic disorder primarily affecting bone and dental development. It is inherited in an autosomal dominant manner, typically resulting from mutations in the RUNX2 gene[1].
Clinical Presentation
Characteristics of CCD include skeletal and dental abnormalities. The most characteristic features are underdeveloped or absent clavicles (collar bones), which results in individuals being able to bring their shoulders together in front of their body. Dental anomalies, including delayed loss of primary teeth and delayed eruption of secondary teeth, are common. Other features include delayed or incomplete closure of the fontanelles, a prominent forehead, wide-set eyes (hypertelorism), a flat nose, and a short stature. Spinal abnormalities, such as scoliosis, may also occur[2].
Genetics
CCD is caused by mutations in the RUNX2 gene, located on chromosome 6p21. RUNX2 is essential for the development of osteoblasts, the cells responsible for bone formation[3].
Diagnosis and Management
Diagnosis of CCD is primarily based on clinical examination and radiographic findings, but can be confirmed by genetic testing. Management of CCD is mainly supportive and involves a multidisciplinary approach, including orthopedic management for skeletal anomalies and dental interventions for oral health.
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Cleidocranial dysostosis
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Cleidocranial dysostosis
See Also
References
- ↑ , Cleidocranial dysplasia, Orphanet Journal of Rare Diseases, 2006, Vol. 1(Issue: 1), pp. 15, DOI: 10.1186/1750-1172-1-15, PMID: 16722557,
- ↑ , GeneReviews. online version, University of Washington, Seattle, 2018,
- ↑ , CBFA1, a candidate gene for cleidocranial dysplasia syndrome, is essential for osteoblast differentiation and bone development, Cell, 1997, Vol. 89(Issue: 5), pp. 765-771, DOI: 10.1016/S0092-8674(00)80259-7, PMID: 9182762,
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NIH genetic and rare disease info
Cleidocranial dysostosis is a rare disease.
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Rare diseases - Cleidocranial dysostosis
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Contributors: Prab R. Tumpati, MD
