Classification and microsurgical treatment of cerebellopontine angle meningiomas
ZHANG Zhi-yuan
WANG Han-dong
FAN You-wu
PAN Yun-xi
DONG Guo-jun
Abstract：Objective To investigate the classification and microsurgical treatment of the cerebellopontine angle (CPA) meningiomas. Methods The clinical data of 76 patients with CPA meningiomas undergoing microsurgery from June, 2008 to March, 2017 were analyzed retrospectively. The different approaches of the microsurgery performed in the patients were selected according to the classification of CPA meningiomas. Of 76 CPA meningiomas, 31 were premeatal type tumors, 17 postmeatal type and 28 combined types according to the tumorous relationship with the internal acoustic canal. Of 76 patients with CPA meningiomas, 73 underwent microsurgery through subocipital retrosigmoid approach, 2 through subtemporal approach and 1 through pterional approach. The patients were followed up for 1 to 10 years. Results The CPA meningiomas were totally resected in 71 patients and partially in 5. Two patients died and there were new neurological dysfunctions in 15 patients during the following up. Conclusions The curative effects of microsurgery on CPA meningiomas are good. The microsurgery through the extended suboccipital retrosigmoid approach for almost CPA meningiomas is preferable. It is important to separate and protect various cranial nerves, venae petrosa and important arteries in the microsurgical operation of CPA meningiomas.
Keywords：MeningiomaCerebellopontine angleOperative approachMicrosurgeryClassification
Publication Date：2019-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 132-134 )