Abstract
Facial nerve schwannomas (FNSs) are uncommon; extremely slow growing, benign tumors that frequently present without facial dysfunction. Malignant FNSs are extremely rare. They can arise at the cerebellopontine angle (CPA), internal meatus, geniculate ganglion, peripheral nerves in the mastoid bone, or in muscle (Fig. 1). The tumor arises from Schwann cells in a focal manner as a solitary and well-encapsulated mass. The most common sites are the geniculate ganglion and internal auditory canal. This study reviews the surgical anatomy, clinical presentations, radiological diagnosis, appropriate planning for the management, surgical approaches, and the predictive outcomes of surgical management. Surgery is clearly indicated when the patient already presents with facial nerve palsy. If the facial function is normal and the tumor is not compressing the brainstem, conservative management is considered.
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Ramina, R., Neto, M., Silva Junior, E., Vosgerau, R., Leal, A., Fernandes, Y. (2008). Facial Nerve Schwannomas. In: Samii's Essentials in Neurosurgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-49250-4_17
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DOI: https://doi.org/10.1007/978-3-540-49250-4_17
Publisher Name: Springer, Berlin, Heidelberg
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