Transfacial surgical treatment and anthropometric considerations of frontoethmoidal meningoencephaloceles.

Meningoencephaloceles and meningoceles are projections of the meninges with or without cerebral tissue, respectively, through a cranial bony defect. Generally, meningoceles are soft and depressible, whereas meningoencephaloceles are solid and pulsatile. They can present through the calvarium or facial bones.