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Comparison of the Retrosigmoid Approach and the Minimal Mastoidectomy, Retrolabyrinthine, Translabyrinthine, and Transcochlear Approach Modifications of the Presigmoid Approach

Surgical Correlation


I, The labyrinthine, tympanic, and mastoid segments of the facial nerve have been exposed in preparation for the posterior transposition of the nerve needed to complete the transcochlear exposure. J, The facial nerve has been transposed and the cochlea and petrous apex removed to complete the transcochlear exposure of the anterior aspect of the brainstem and the basilar artery. (Images courtesy of AL Rhoton, Jr.)

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