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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Craniometaphyseal dysplasia, autosomal recessive type


Other Names for this Disease
  • CMDR
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Symptoms


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What are the signs and symptoms of craniometaphyseal dysplasia?

Bone overgrowth in the head causes many of the signs and symptoms of craniometaphyseal dysplasia. Affected individuals typically have distinctive facial features such as a wide nasal bridge, a prominent forehead, wide-set eyes (hypertelorism), and a prominent jaw. Excessive new bone formation (hyperostosis) in the jaw can delay teething (dentition) or result in absent teeth. Infants with this condition may have breathing or feeding problems caused by narrow nasal passages. In severe cases, abnormal bone growth can compress the nerves that emerge from the brain and extend to various areas of the head and neck (cranial nerves). Compression of the cranial nerves can lead to paralyzed facial muscles (facial nerve palsy), blindness, or deafness.[1]

The x-rays of individuals with craniometaphyseal dysplasia show unusually shaped long bones, particularly the large bones in the legs. The ends of these bones (metaphyses) are wider and appear less dense in people with this condition.[1]

Last updated: 3/9/2011

References
  1. Craniometaphyseal dysplasia. Genetics Home Reference (GHR). 2009; http://ghr.nlm.nih.gov/condition/craniometaphyseal-dysplasia. Accessed 8/24/2010.