What is Crouzon Syndrome?

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Crouzon syndrome is a rare craniofacial disorder where the bones in the head fuse prematurely. It often requires surgery to expand the skull and face.

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Crouzon syndrome occurs in roughly one out of every 60,000 newborns, and affects the development of the head and face.

A child's facial features are a helpful indicator of Crouzon syndrome. Because the bones of the skull and face fuse early, they do not develop normally; the mid-face is underdeveloped and the eye sockets don't form correctly. This affects the shape of the eyes, head, and jaw. Surgery is often required to expand the skull and the mid-face, and repair facial abnormalities.

Characteristics of the condition:

  • Eyelids that slant downward
  • Underdeveloped jaw
  • Bulging eyes due to shallow eye sockets
  • Wide-set eyes
  • Craniosynostosis (Fused skull)
  • High arched palate

What does this mean for someone with the condition?

Individuals with Crouzon syndrome not only have similar physical characteristics, but depending on severity, may need surgery to improve breathing, protect vision and hearing, and allow for adequate room for brain growth. 

What causes Crouzon syndrome?

Crouzon syndrome is caused by a genetic mutation. Individuals with the condition have a 50% chance of passing the condition on to their children.