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Craniosynostosis: Coronal Synostosis
The coronal sutures are nearer to the front of the skull and go from ear to ear (located approximately where a girl might wear a headband to pull her hair back from her face). Coronal synostosis may be unilateral (involving one suture) or bilateral (involving both sutures).
Unilateral Coronal Synostosis
Anterior plagiocephaly is a type of craniosynostosis in which one of the skull's coronal sutures closes before birth, resulting in head and facial asymmetry that could be described as "lopsided." This kind of craniosynostosis occurs more often in girls than in boys.
Bilateral Coronal Synostosis
Early brachecephaly is a type of craniosynostosis in which both of the skull's coronal sutures close early in embryonic development, resulting in a head that is short from front to back and broad in front with a high forehead. This kind of craniosynostosis is commonly found in syndromes such as Apert, Crouzon, Pfeiffer, Saethre-Chotzen and Carpenter.
Late oxycephaly is a type of craniosynostosis in which both of the skull's coronal sutures and its sagittal sutures close late in embryonic development, resulting in a head that is tall and pointed in shape.