Intermediate Nerve Schwannomas
The intermediate nerve is rarely addressed as site of tumor origin in cerebellopontine surgery. This chapter presents typical clinical, electrophysiological and radiological signs of an intermediate nerve schwannoma. The authors describe the special surgical techniques in these rare entities with an emphasis on the intraoperative electrophysiological monitoring. In conclusion it is possible to detect the intermediate nerve as site of tumor origin during cerebellopontine surgery using selective direct nerve stimulation and multi-channel recordings. Subsequently, more intermediate nerve schwannomas may be identified as tumor origin by detailed intraoperative electrophysiological examination.
KeywordsFacial Nerve Internal Auditory Canal Vestibular Schwannomas Brainstem Auditory Evoke Potential Geniculate Ganglion
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