청력 및 안면 신경기능을 보존하면서 중두개와 접근법으로 치료한 내이도내 종양 2례

Abstract

Acoustic tumor, originating from the vestibular nerve, is the commonest neoplasm in the internal auditory canal. But lymphangioma is rare in this region. In case of a small tumor limited within the internal auditory canal, the middle cranial fossa approach is a selective method to preserve hearing as well as facial nerve function in addition to the complete removal of the tumor itself. We report the results of our recent experiences of functional preservation surgery in each case of intracanalicular acoustic neuroma and lymphangioma.