Zhao Hongyu, Li Xiaodong, Lv Qingjie, Yuan Yuhui, Yu Hongwei
Department of Neurosurgery, The Second Affiliated Hospital (Shengjing Hospital), China Medical University, Shenyang, PR China.
J Med Case Rep. 2008 Oct 27;2:334. doi: 10.1186/1752-1947-2-334.
Schwannoma arising from the glossopharyngeal nerve is a rare intracranial tumor. Fewer than 40 cases have been reported. Accurate pre-operative diagnosis and optimal treatment are still difficult.
We present one case of schwannoma originating from the ninth cranial nerve with palsies of the trigeminal nerve, facial-acoustic nerve complex, and vagus nerve in addition to ninth nerve dysfunction. Magnetic resonance imaging showed tumors located in the cerebellopontine angle with extracranial extension via the jugular foramen, with evident enhancement on post-contrast scan. Surgical management single-staged with the help of gamma knife radiosurgery achieved total removal.
Glossopharyngeal schwannoma is devoid of clinical symptoms and neurological signs. High resolution magnetic resonance imaging may play a key role as an accurate diagnostic tool. A favorable option of approach and appropriate planning of surgical strategy should be the goal of operation for this benign tumor.
起源于舌咽神经的神经鞘瘤是一种罕见的颅内肿瘤。报告的病例少于40例。准确的术前诊断和最佳治疗仍然困难。
我们报告1例起源于第九颅神经的神经鞘瘤，除第九神经功能障碍外，还伴有三叉神经、面听神经复合体和迷走神经麻痹。磁共振成像显示肿瘤位于桥小脑角，经颈静脉孔向颅外延伸，增强扫描后明显强化。借助伽玛刀放射外科进行单阶段手术治疗实现了肿瘤全切。
舌咽神经鞘瘤缺乏临床症状和神经体征。高分辨率磁共振成像作为一种准确的诊断工具可能起关键作用。对于这种良性肿瘤，选择合适的手术入路并合理规划手术策略应是手术的目标。
