Petrosal presigmoid approach to the petro-clival and anterior cerebellopontine region (extended retrolabyrinthine, transtentorial approach)

摘要

Intradural tumours affecting the clivus may be divided into three categories depending the area primarily involved by tumour. The second area extends from the spheno-occipital synchondrosis to the level of the jugular foramina. This area is best approached through the petrosal approach and suited for patients with servicable hearing on the side of the lesion. 35 cases having skull base lesions were operated by the Skull Base Surgery Group of Ege University Medical Faculty Between October 1993 and December 1997.