[Neurinoma of the third portion of the facial nerve. About a case cured after hypoglosso-facial anastomosis (author's transl)].

The authors report a case of a neurinoma of the third portion of the facial nerve, revelated by a progressive palsy completed four months later (but the muscle of the stapes was still working). After removing the neurinoma which was in the middle of the mastoïde an anastomosis between the XII and the VII nerves was performed and successful. The authors emphasize two facts: --The possibility of active reinervation by this method of the facial muscles even after a long delay of complete interruption of the facial nerve. --The advantage of performing the micro-anastomosis as close as possible to the myo-neural synapsis (just before the bifurcation of the facial nerve.