Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
The major sutures are the coronal, sagittal, lambdoid, squamosal,
metopic and mendosal sutures. Sutures in the postnatal period appear
wide because membranous ossification is incomplete at the sutural
margins. Suture widening is seen in the preterm infant,
hypophosphatasia, rickets, hypothyroidism, and skeletal dysplasias.
The anterior fontanelle closes at 12-18 months of age while the
posterior fontanelle closes either 2 months prenatally or 2 months
postnatally. The coronal, lambdoid and sagittal sutures persist
throughout childhood and generally do not begin to close until 30
years of age.
Pathology:
Not applicable
Imaging Findings:
Not applicable
DDX:
References:
See References Chapter.
Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
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