Craniosynostosis and deformational plagiocephaly: when and how to intervene.

Craniosynostosis, a congenital deformity in which one or more of the sutures between the bones of the cranial vault fuse prematurely, is a relatively rare condition that is usually obvious just after birth. Deformational plagiocephaly is much more common and usually becomes apparent by 2 months of age. Although the head of a baby with deformational plagiocephaly may appear flat on one side, deformational plagiocephaly does not affect brain function. Craniosynostosis, however, may impair brain growth and development and, thus, is far more serious. Babies with irregularly shaped heads that are concerning should be evaluated by a craniofacial surgeon. This article provides an overview of the physical signs of craniosynostosis and deformational plagiocephaly as well as an update on treatment.