A meningioma of the scalp that might have developed from a rudimentary meningocele.

Meningiomas of the skin are extremely rare. In this case of a congenital meningioma of the scalp, magnetic resonance imaging showed no communication to the meninges. The histological examination discovered a small group of meningioma cells in the periosteum, supporting the assumption that primary cutaneous meningiomas may develop from rudimentary meningoceles.