Surgical Findings to Differentiate Between Facial Nerve Schwannoma and Vestibular Schwannoma
- Authors
- Lee, Jong Dae; Lee, Won-Sang
- Issue Date
- Sep-2014
- Publisher
- 대한이비인후과학회
- Keywords
- Facial nerve; Neurilemmoma; Acoustic neuroma
- Citation
- Clinical and Experimental Otorhinolaryngology, v.7, no.3, pp 157 - 159
- Pages
- 3
- Journal Title
- Clinical and Experimental Otorhinolaryngology
- Volume
- 7
- Number
- 3
- Start Page
- 157
- End Page
- 159
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/11939
- DOI
- 10.3342/ceo.2014.7.3.157
- ISSN
- 1976-8710
2005-0720
- Abstract
- Objectives. Facial nerve schwannomas may be misdiagnosed as vestibular schwannomas (VSs) if the tumor is confined to the internal auditory canal (IAC) without involvement the geniculated ganglion or labyrinthine segment of facial nerve. Because facial nerve schwannomas may be misdiagnosed as VSs, we investigated the differences between the two. Methods. The study included 187 patients with a preoperative diagnosis of VS. Of these, six were diagnosed with facial nerve schwannomas during surgery We reviewed the preoperative evaluations and surgical findings of facial nerve schwannomas mimicking VSs. Results. No useful preoperative predictors are available for facial nerve schwannomas mimicking VSs. Facial nerve schwannomas are usually confined to the IAC. After opening the dura of the IAC, a facial nerve schwannoma can be diagnosed after identifying a normal-appearing nerve located lateral to the tumor. When this was the case, we performed facial nerve preservation surgery or decompression. Conclusion. Facial nerve schwannomas can be differentiated from VSs by identifying specific findings during surgery.
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Collections - College of Medicine > Department of Otorhinolaryngology > 1. Journal Articles
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