Plagiocephaly refers to a type of craniosynostosis in which there is asymmetric premature closure of the coronal and/or lambdoid sutures. It can either involve single or asymmetric multiple sutures. Premature coronal suture closure is associated with the Harlequin eye deformity.
History and etymology
The term originates from the Ancient Greek words plagios (πλαγιοσ), meaning slanting or oblique, and kephale (κεφαλη), meaning head.
It should not be confused with positional plagiocephaly, which is a calvarial deformation that results from external pressure and is not associated with premature suture synostosis.