Fig. 2.

Schematic illustration of the variable anatomical relations of the nerves within the IAC, (A) showing an anticlockwise rotation from the inner ear end towards the brainstem end of the IAC at the right side and (B) showing a clockwise rotation from the inner ear end towards the brainstem end of the IAC at the left side. Abbreviations: Ant, anterior; C, cochlear nerve; F, facial nerve; IAC, internal auditory canal; IV, inferior vestibular nerve; Post, posterior; SV, superior vestibular nerve.