经颧弓改良翼点入路显微手术切除巨大蝶骨嵴脑膜瘤

目的应用经颧弓改良翼点入路显微手术，切除巨大蝶骨嵴脑膜瘤。方法改良翼点入路，主要为切断颧弓，尽量暴露中颅底，在显微旬下操作分块切除肿瘤，避免损伤颈内动脉等重要结构。结果１３例巨大蝶骨嵴脑膜瘤在显微镜下做到了全切，术后出现脑血管痉挛４例，精神症状６例及皮下积液８例等。给予相应处理后，均在短期内恢复。结论经颧弓改良翼点入路显微手术，能够充分暴露中颅底，肿瘤显露良好，镜下视野清楚，避免损伤了重要结构，特

Microsurgery operation of transzygomatic-modifiable pterional approach to remove giant sphenoid ridge meningiomas

Objective Microsurgery operation of transzygomatic-modifiable pterional approach was en- ployed to remove the giant sphenoid ridge meningiomas. Methods Modifiable transpterional approach,zygomatic osteotomy,wide exposure of the middle skull bases were performed and the tumour mass were removed under microscopy to avoid important structures of the intracranial artery injuried. Results The giant sphenoid ridge meningiomas were removed totally in thirteen patients under microscopy. There were 4 cases of cerebral vasospasm, 6 cases of psychiatric disturbance and 8 cases of subcutaneous dropsy. They were recovered in short term after appropriate treatment. Conclusion Transzygomatic-modifiable pterional approach can exposure middle skull bases sufficiently. The tumour can be exposured favourably,and the visual field is obvious,so that the important structures injury may be avoided. This approach is advantageous to the inner sphenoid ridg meningiomas particulary.