Fig. 7
From: Aberrant growth of the anterior cranial base relevant to severe midface hypoplasia of Apert syndrome

Coronal sutures in PA X-ray views. a A 9-year-old normal male with still immature coronal suture (arrows). b An Apert syndrome patient, a 9-year-old male, with tightly interdigitated coronal suture (arrows) similar to that of a 30-year-old normal male (c)