Abstract：
Due to deep location and for being adjacent to neurovascular structures, petroclival meningiomas (PCMs) are generally considered to be associated with a high rate of recurrence and cranial nerve deficits.1 This video presents a 49-year-old female patient reporting right trigeminal neuralgia for more than 1 year. The incidence of this symptom with PCMs is about 5%.2 According to the classification system proposed by Kawase et al.3 and Ichimura et al.,4 this is a tentorium type PCM. A modified anterior petrosectomy approach was adopted based on the tumor size and its origin. The case presentation, surgical technique, postoperative outcome are reviewed. The treatments to the intraoperative trochlear nerve injury and temporal bridging vein occlusion are displayed (Video 1). The patient gave verbal consent for participating in the procedure and surgical video.
摘要：
由于位置较深并且与神经血管结构相邻，岩斜脑膜瘤（PCM）通常被认为与高复发率和颅神经缺陷有关。1该视频介绍了一名49岁女性患者，报告右三叉神经痛超过1年。根据Kawase等人3和Ichimura等人提出的分类系统，PCMs的这种症状的发生率约为5％。,在图4中,这是一个帐篷型PCM。根据肿瘤的大小和起源，采用改良的前岩石切除术方法。案例介绍,外科技术,术后结果回顾。显示了术中滑车神经损伤和颞桥静脉阻塞的治疗方法（视频1）。患者口头同意参与手术和手术录像。
