Kiriyanthan G, Krauss J K, Glocker F X, Scheremet R
Department of Neurosurgery, University Hospital, Freiburg, Germany.
Surg Neurol. 1994 Jun;41(6):498-501. doi: 10.1016/0090-3019(94)90016-7.
The case of a 62-year-old female patient who presented with facial myokymia is reported. The patient had a 13-year history of progressive left-sided hearing loss. In further course, involuntary, wormlike, rippling movements of the left facial muscles developed. Computed tomography revealed a tumor located in the left cerebellopontine angle. Electrophysiologic examinations confirmed the diagnosis of facial myokymia. The tumor, which evolved from the eighth cranial nerve, was totally removed microsurgically. The tumor was histologically verified to be an acoustic neurinoma. Postoperatively, the patient had a facial nerve paralysis, and the facial myokymia was no longer present. The present case provides further evidence that facial myokymia may be triggered by alterations at one of various sites along the course of the motor axons of the facial nerve.
报告了一例62岁出现面部肌束震颤的女性患者。该患者有13年进行性左侧听力丧失病史。在病程中，左侧面部肌肉出现不自主、蠕虫样、波动运动。计算机断层扫描显示位于左侧小脑脑桥角的肿瘤。电生理检查确诊为面部肌束震颤。起源于第八颅神经的肿瘤通过显微手术完全切除。肿瘤经组织学证实为听神经瘤。术后，患者出现面神经麻痹，面部肌束震颤不再出现。本病例进一步证明面部肌束震颤可能由面神经运动轴突行程中不同部位之一的改变所触发。
