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Diagnosis and surgical outcomes of intraparotid facial nerve schwannoma showing normal facial nerve function

Authors
 D.W. Lee ; H.K. Byeon ; Y.M. Park ; S.-H. Kim ; E.C. Choi ; H.P. Chung 
Citation
 International Journal of Oral and Maxillofacial Surgery, Vol.42(7) : 874~879, 2013 
Journal Title
 International Journal of Oral and Maxillofacial Surgery 
ISSN
 0901-5027 
Issue Date
2013
Abstract
The findings of intraparotid facial nerve schwannoma (FNS) using preoperative diagnostic tools, including ultrasonography (US)-guided fine needle aspiration biopsy, computed tomography (CT) scan, and magnetic resonance imaging (MRI), were analyzed to determine if there are any useful findings that might suggest the presence of a lesion. Treatment guidelines are suggested. The medical records of 15 patients who were diagnosed with an intraparotid FNS were retrospectively analyzed. US and CT scans provide clinicians with only limited information; gadolinium enhanced T1-weighted images from MRI provide more specific findings. Tumors could be removed successfully with surgical exploration, preserving facial nerve function at the same time. Gadolinium-enhanced T1-weighted MRI showed more characteristic findings for the diagnosis of intraparotid FNS. Intraparotid FNS without facial palsy can be diagnosed with MRI preoperatively, and surgical exploration is a suitable treatment modality which can remove the tumor and preserve facial nerve function.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/88144
DOI
10.1016/j.ijom.2013.03.013
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Otorhinolaryngology
Yonsei Authors
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Link
 http://www.sciencedirect.com/science/article/pii/S0901502713001239
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