Craniosynostosis, Dandy-Walker malformation and hydrocephalus is a malformation disorder characterized by sagittal craniosynostosis (see this term), Dandy-Walker malformation, hydrocephalus, craniofacial dysmorphism (including dolichocephaly, hypertelorism, micrognathia, positional ear deformity) and variable developmental delay. The inheritance pattern appears to be autosomal dominant.

Bilateral bulging of the lateral frontal bone prominences with relative sparing of the midline.