Congenital duplication of mastoid segment of facial nerve: A rare case report

Abstract

Congenital duplication of facial nerve is a very rare anomaly commonly associated with inner and middle ear anomalies. There can be duplication of mastoid, tympanic, or labyrinthine segments. We describe duplication of mastoid segment of facial nerve in a young female who also showed middle ear anomalies and external auditory canal atresia.

Keywords

• chorda tympani nerve
• computed tomography
• facial nerve
• stylomastoid foramen