Craniosynostosis is a birth disorder in which bones of baby skull join together too early. It happens when the baby brain does not fully develop as the baby brain grows the skull becomes more misshapen. The space between the skull bones is filled with the flexible material called sutures. Sutures allow the skull to grow as the baby’s brain grows. In craniosynostosis, the two or more sutures close too early that limit the baby brain growth.


There are different types of it such as;

  • Sagittal synostosis (scaphocephaly): Fusion of the suture at the top of the head. That force the head to grow long and narrow.
  • Coronal synostosis (anterior plagiocephaly): Premature fusion of a coronal suture. As result baby’s forehead to flatten on the affected side. It may also raise the eye socket and cause a deviated nose and slanted skull.
  • Bicoronal synostosis (brachycephaly).When both of the coronal sutures fuse prematurely, your baby may have a flat, elevated forehead and brow.

Two less common types are following;

  • Metopic synostosis (trigonocephaly) Premature fusion gives the scalp a triangular appearance.
  • Lambdoid synostosis (posterior plagiocephaly) It may cause flattening of your baby’s head on the affected side


Main signs are following;

  • A misshapen skull, with the shape depending on which of the cranial sutures are affected
  • An abnormal feeling or disappearing “soft spot” (fontanel) on your baby’s skull
  • Slow or no growth of the head as baby grows
  • Development of a raised, hard ridge along affected sutures
  • High intracranial pressure
admin Default Asked on July 26, 2016 in Disease.
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