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hypertelorism

Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Etiology (exemples)

- craniosynostoses

  • Pfeiffer syndrome

- fetal immotility sequence (Pena-Shokeir syndrome)
- otopalatodigital syndrome type 2
- chromosomal diseases

  • Wolf-Hirschhorn syndrome (4p- syndrome) (del(4p))
  • trisomy 22

See also

- telecanthus
- hypotelorism