From the case: Congenital bifurcation of the intratemporal facial nerve
Coronal bone window
There is bifurcation of the labyrinthine and trifurcations of the mastoid segment of facial nerve. Cochlear nerve canal is stenotic.
- “ Facial nerve bifurcations are rare anomalies which can involve all segments of the nerve. The most common occur in the tympanic segment 1. ”
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