Microsurgical treatment of petroclival meningiomas through subtemporal transtentorial approach

Objective To explore the microsurgical treatment methods and results of petroclival meningiomas through subtemporal transtentorial approach. Methods 25 patients with petroclival meningiomas were performed microsurgery through subtemporal transtentorial approach. CT and MRI showed the tumor diameter were between 2. 5 ~ 4. 4 cm in 18 cases, 4. 5 cm in 7 cases. Results 20 cases of tumors were totally removed,5 partial removed,no operative death. 11 cases had new crainal never deficits after operation. There were 4 cases recurrence during 1 ~ 24 monthes following up.Conclusion Subtemporal transtentorial approach is a practical method for microsurgery of petroclival meningiomas occupied the upper slope,especially invased the Meckel cavity.