Neuromas of the facial nerve: A report of 12 cases

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Abstract
Twelve patients with facial nerve neurinoma have been treated at The National Hospital, Queen Square, London, during the last 20 years. Nine tumours lay in the middle fossa arising from the area of the geniculate ganglion, two lay in the posterior fossa arising from the segment of the facial nerve in the internal auditory canal, and one tumour arose from the vertical segment of the facial nerve with extracranial extension through the stylomastoid foramen. Two patients had neurofibromatosis. The clinical and radiographic features of those tumours, the operative approaches employed, and the postoperative outcome are described. Complete tumour excision was achieved in all patients; all 12 remain free of recurrence 3–80 months after surgery. Facial nerve function was restored at least in part in all cases by transposition with end-to-end anastomosis, placement of a cable graft from the sural nerve or hypoglosso-facial anastomosis. The major determinant of the outcome of facial nerve function was the duration of preoperative facial paralysis, the results being invariably poor when this was of long duration.

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