Exposing the Fundus of the Internal Acoustic Meatus without Entering the Labyrinth Using a Retrosigmoid Approach: Is It Possible?
Keywords: Acoustic neuroma; Fundus; Inner ear; Internal acoustic meatus; Neuronavigation; Retrosigmoid approach; Semicircular canalsAFB, Acoustic-facial bundle; aPSC, Anterior part; CC, Common crus; ES, Endolymphatic sac; F, Fundus of internal acoustic meatus; IAM,