枕下远外侧入路切除枕大孔前方及外侧肿瘤

目的 探讨枕下远外侧入路显微外科切除枕骨大孔区前方及外侧肿瘤的手术方法。方法 自1995年9月至2002年10月应用枕下远外侧入路切除枕骨大孔区前、外侧肿瘤10例，其中脑膜瘤5例、复发性脊索瘤2例、舌下神经鞘瘤2例、颈静脉球瘤1例。结果 本组10例中，肿瘤全切除6例、次全切除3例、大部分切除1例、术后出现后组颅神经麻痹2例，无手术死亡。结论 该入路可增加术野空间，从更大程度上显露肿瘤组织，有利于减少对脑干和重要血管、神经的牵拉。

Removal of ventral and lateral foramen magnum tumors by the far-lateral suboccipital approach

Objective To explore a surgical approach to ventral and lateral foramen magnum tumors by far lateral suboccipital approach. Methods Ten patients with ventral and ventral lateral foramen magnum tumors were operated through the far lateral suboccipital approach from September. 1995 to October. 2002. The cases consisted of 5 meningiomas, 2 recurrent chordomas, 2 hypoglossal neurinomas and 1 glomus jugulare tumor. Results Among the 10 patients, total removal of tumor was achieved in 6 cases, subtotal removal of tumor in 3 cases and great partial removal of tumor in 1 case. No surgical mortality occurred in this series. Conclusion This approach can provide large field of operation and wide surgical exposure to the lesion, and benefit minimal retractation of brain stem and main blood vessls or cranial nerves.