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Atypical tumors of the facial nerve: Case series and review of the literature

机译：面神经非典型性肿瘤：病例系列及文献复习

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Object. The authors present a series of 4 patients with rare facial nerve tumors. The relevant literature is reviewed and is discussed regarding diagnostic features, the role of operative management, and surgical approach. Methods. A retrospective chart review was conducted for patients with tumors of the facial nerve that were treated between 2008 and 2011. Patients undergoing observationwith serial MRI and thosewho were treated with up-front radiosurgeryand for whom tissue diagnosis was not available were excluded. In addition, patients with suspected vestibular schwannoma, facial nerve schwannoma, neurofibromatosis Type 2, and metastatic disease were also excluded. The charts of 4 patients (2 men and 2 women) with "atypical" tumors were reviewed and analyzed. Results. A total of 12 patients with tumors of the facial nerve were identified during the study period. Patient characteristics, preoperative imaging, operative approach,tumor histology,and outcomes are described. Conclusions. Atypical facial nerve tumors must be distinguished from the more common facial nerve schwannoma.How the authors of this study treat rare facial nerve tumors is basedon their experience with the more common facial nerve schwannomas, characterized by a slow progression of symptoms and growth. Less is known about the rare lesions, and thus a conservativeapproach may be warranted. Open questions include the role of radiosurgery, facial nervedecompression, and indications for resection of tumor and cable grafting for these rare lesions.
机译：目的。作者介绍了一系列4例罕见的面神经肿瘤患者。回顾并讨论了有关的文献，包括诊断特征，手术管理的作用和手术方法。方法。对2008年至2011年间接受治疗的面神经肿瘤患者进行回顾性图表审查。接受系列MRI观察的患者和接受放射线外科手术治疗且无法进行组织诊断的患者被排除在外。此外，还排除了疑似前庭神经鞘瘤，面神经神经鞘瘤，2型神经纤维瘤病和转移性疾病的患者。回顾并分析了4例“非典型”肿瘤患者（2例男性和2例女性）的图表。结果。在研究期间共鉴定出12例面神经瘤患者。描述患者的特征，术前影像学检查，手术方法，肿瘤组织学和结局。结论必须将非典型面神经瘤与较常见的面神经神经鞘瘤区分开。本研究的作者如何治疗罕见的面神经瘤是基于他们对较常见的面神经神经鞘瘤的经验，其特征是症状和生长缓慢。对于罕见病灶知之甚少，因此可能需要采取保守的方法。尚待解决的问题包括放射外科手术，面部神经减压的作用以及这些罕见病变的肿瘤切除和电缆移植的适应症。

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