[Neurosurgical aspects of the treatment of acoustic neurinoma with special consideration of the facial nerve (author's transl)].

The decisive progress in the field of surgical treatment of acoustic neurinomas has occured after the introduction of the operating microscope. This is a survey of the microsurgical treatment of cerebellopontine angle tumors with special emphasis of the facial nerve and demonstration of individual cases. Moreover, the technique of the dissection and preservation of the continuity of the facial nerve during removal of a tumor is analysed. The possibilities of reconstructive surgery of an end-to-end suture or nerve graft in case of facial nerve lesions after removal of a tumor are discussed.