Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.
Etiology (exemples)
- 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