Facial nerve schwannomas: A report of four cases and a review of the literature

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dc.contributor.authorÜlkü, Çağatay Han
dc.contributor.authorUyar, Yavuz
dc.contributor.authorAcar, Osman
dc.contributor.authorYaman, Hüseyin
dc.contributor.authorAvunduk, Mustafa Cihat
dc.date.accessioned2020-03-26T16:55:17Z
dc.date.available2020-03-26T16:55:17Z
dc.date.issued2004
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractObjective: To evaluate both the surgical approaches and results of the facial nerve schwannoma cases as diagnosed in our clinic in line with the literature. Material and Methods: The files of 4 cases diagnosed in our clinic as facial nerve schwannoma between 1996 to 2002 were reviewed retrospectively. All the cases were evaluated with detailed history; ear, nose, and throat examination; computed tomography; and/or magnetic resonance imaging. If required, electromyography and audiometric evaluations were made. Fine-needle aspiration cytology was also performed in appropriate cases. The surgical approach used was determined depending on the tumor location and its extent. Facial nerve reconstruction was accomplished if the integrity of the nerve could not be protected. Cases were followed up for facial nerve function, complications, and recurrence. Results: The tumors occurred in the vertical (n = 2), internal auditory canal (n = 1), and the peripheric segment (n = 1) of the nerve. As symptoms, facial paralysis (n = 2), hearing loss (n = 3), tinnitus (n = 1), otorrhea (n = 2), parotid mass (n = 2), and external auditory canal mass (n = 1) were observed. Radiologic investigations provided important informations. However, fine-needle aspiration cytology did not contribute to a correct preoperative diagnosis. The superficial parotidectomy approach (n = 1), retrosigmoid approach (n = 1), and transmastoid-superficial parotidectomy combined approach (n = 2) were used. The integrity of the nerve could not be protected in 3 of the cases. After the reconstruction surgery, the facial nerve function was evaluated as House-Brackmann grade 3 for all 3 cases at the mean 38.6 months follow-up time. No tumors have recurred during follow-up. Conclusion: Facial nerve schwannoma is a rare tumor. Through improved surgical and reconstruction techniques, postoperative morbidity is at acceptable levels. The rate of recurrence is low. It should be kept in mind for differential diagnosis of facial nerve paralysis. (C) 2004 Elsevier Inc. All rights reserved.en_US
dc.identifier.doi10.1016/j.amjoto.2004.04.013en_US
dc.identifier.endpage431en_US
dc.identifier.issn0196-0709en_US
dc.identifier.issue6en_US
dc.identifier.pmid15547813en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage426en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.amjoto.2004.04.013
dc.identifier.urihttps://hdl.handle.net/20.500.12395/19070
dc.identifier.volume25en_US
dc.identifier.wosWOS:000225606100009en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherW B SAUNDERS COen_US
dc.relation.ispartofAMERICAN JOURNAL OF OTOLARYNGOLOGYen_US
dc.relation.publicationcategoryDiğeren_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleFacial nerve schwannomas: A report of four cases and a review of the literatureen_US
dc.typeReviewen_US

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