Clinical features and prognostic analysis of 11 cases of epidermoid cysts complicated with secondary hemifacial spasm
10.19845/j.cnki.zfysjjbzz.2024.0195
- VernacularTitle:11例表皮样囊肿继发面肌痉挛患者临床特征及预后分析
- Author:
Bin CUI
1
;
Jiang LIU
;
Danhui WANG
Author Information
1. 航空总医院神经外科,北京 100012
- Keywords:
Hemifacial spasm;
Epidermoid cyst;
Microvascular decompression;
Cerebellopontine angle
- From:
Journal of Apoplexy and Nervous Diseases
2024;41(11):1024-1028
- CountryChina
- Language:Chinese
-
Abstract:
Objective Primary hemifacial spasm(HFS)is caused by vascular compression in the root exit zone(REZ)of the facial nerve.Currently,there are few reports on secondary HFS caused by cerebellopontine angle tumors,especially epidermoid cysts,and its specific mechanism is still unclear.The purpose of this article is to provide clinical in-sights into the pathological characteristics and intraoperative findings of patients with HFS secondary to epidermoid cysts.Methods Among 3 950 HFS patients treated between 2010 and 2022,a retrospective analysis was conducted on 11 pa-tients with HFS and epidermoid cysts,focusing on the correlations of symptoms,tumors,and blood vessels.Results All patients underwent epidermoid cyst resection,with a mean follow-up of 45 months.Among the 11 patients,8 patients achieved total tumor resection and 3 patients achieved subtotal tumor resection.No recurrence occurred in these patients during the follow-up period.In 7 cases,the REZ of the facial nerve was compressed by the artery and was completely de-compressed with polytetrafluoroethylene after tumor resection.The symptoms of 9 patients were relieved immediately after surgery,and the symptoms of 2 patients without arterial compression gradually improved and they recovered after two months.Conclusion HFS may be the initial symptom of cerebellopontine angle epidermoid cyst,and most cases in this group were caused by the compression from both the tumor and the artery at the REZ of the facial nerve.To completely re-lieve symptoms,it is essential to examine the vascular compression of the facial nerve root following tumor resection..
