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Cleidocranial dysostosis

Symptoms:
  • Incomplete or absent collar bone
  • Ability to touch shoulders together in front of body
  • Loose joints
  • Delayed closure of fontanelles
  • Tooth abnormalities
    • Failure to lose the primary teeth at the expected time
    • Slow eruption of secondary teeth
    • Extra teeth (supernumerary teeth)
    • Peg teeth
    • Delayed formation or absence of teeth
  • Low nasal bridge
  • Occipital, parietal, and frontal bossing
  • Short forearms
  • Short fingers


Signs and tests:

There is often a family history of cleidocranial dysostosis.

Skeletal x-rays show:

  • Undergrowth of the clavicle (collarbone)
  • Undergrowth of the scapula (shoulder blade)
  • Failure of the pubic symphysis (the place in the front of the pelvis where the bones are united by cartilage) to close



Review Date: 10/22/2004
Reviewed By: Brendan T. Campbell, MD, MPH, Department of Surgery, Arkansas Children's Hospital, Little Rock, AR. Review provided by VeriMed Healthcare Network.

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