Scaphocephaly

Scaphocephaly (pronounced skaf-o-SEF-aly; from Greek skaphe meaning 'light boat or skiff' and kephale meaning 'head') describes a specific shape of a long narrow head that resembles an inverted boat.
It is a type of cephalic disorder which occurs when there is a premature fusion of the sagittal suture. The sagittal suture joins together the two parietal bones of skull. Scaphocephaly is the most common of the craniosynostosis conditions and is characterized by a long, narrow head.