经眶颧额颞下入路显微切除中颅窝底肿瘤

Microsurgery of tumors on basal middle cranal fossa via frontotemporal-orbitozygomatic approach: Report of 25 cases

经眶颧额颞下入路显微外科技术切除中颅窝底肿瘤２５例。脑膜瘤全切除１６例（８０％），次全切除４例。入侵海绵窦内巨大垂体腺瘤次全切除与大部切除各２例。骨巨细胞瘤全切除１例。无死亡。术后Ｋａｒｎｏｆｓｋｙ记分显著改善（９０．８±１３．２，Ｐ＜０．００１）。本入路因明显扩大了颅底显露角度，便于清除颅底病变骨质，明显缩短了肿瘤显露距离，最大限度地减少了脑牵拉，有利于切除鞍旁及海绵窦内肿瘤。

Abstract Via a combined frontotemporal-orbitozy-gomatic approach, we operated on 25 patients with tumors of basal middle cranial fossa.of 20 patients with meningiomas(18 cases at parasellar areas), 16 cases(8%) obtained total removal. 4 cases subtotal. Among 4 cases of giant pitutory adenomas with invasion of cavernous sinuses, subtotal removal was achieved in 2 cases, partial removal in others.A giant cell tumor also obtained total removal. There was no mortality in this group.and postoperative Karnofsky scales increased significantly in all patients. This approach facilitates extensive removal of the infiltrated skull bases. provides an excellent visualization of parasellar area, and orbital cavity, even infratemporal fossa, allows for an aggressive resection of neoplasms involving such regions.