Recurrent Meningitis due to Non-implanted Ear in Cochlear Implant Patient with Bilateral Inner Ear Abnormality: A case report

Recurrent meningitis occurs usually due to immunological or anatomical abnormality as well as chronic parameningeal infections. Anatomical abnormalities can be acquired or congenital and most of them are located in the head and neck region. Congenital defects include inner ear abnormalities, patent cochlear aqueduct, patent Hyrtlʼs fissure, abnormal developed facial canal and dehiscence at the lateral end of the internal auditory canal. In this case report, recurrent meningitis due to nonimplanted ear in a cochlear implant patient with bilateral congenital inner ear abnormality was discussed with surgical and radiological findings.