A Late Nonsyndromic Craniosynostosis with Sagittal, Metopic, and Bilateral Coronal Suture Fusion: Case Report

Abstract

Abstract Multisutural synostosis, characterized by the fusion of multiple cranial sutures without a clear underlying syndrome, represents a rare subtype of craniosynostosis. Particularly uncommon is the simultaneous fusion of the sagittal, metopic, and bilateral coronal sutures. This report details the case of a 50-month-old boy, previously healthy, who has displayed an abnormal head shape since infancy due to complex, non-syndromic craniosynostosis involving the simultaneous fusion of four sutures. The closure of the sagittal, metopic, and bilateral coronal sutures has led to a distinct head shape marked by flattening of the forehead and anterior skull, contrasting with the typical Mercedes-Benz pattern observed in craniosynostosis cases. Surgical intervention involved osteotomy with symmetrical barrel staves in the parietal and frontal regions, resulting in improved forehead contour following the operation.