Intracochlear schwannoma and cochlear implantation

A case of intracochlear schwannoma in a 58-year-old candidate for cochlear implantation is described. The tumor was located in the basal turn of the c ochlea and was discovered only during surgery. Computed tomography and magn etic resonance imaging obtained prior to surgery failed to detect the tumor . Intralabyrinthine schwannomas are rare tumors that grow either in the ves tibule, as intravestibular schwannomas, or in the cochlea, as intracochlear schwannomas. Complete removal of this tumor was achieved through a posteri or tympanotomy approach. Cochlear implantation, which resulted in good hear ing, was successfully performed 3 years later.