Abstract
Meningoenceophalic herniation into the external auditory canal is a rare and potentially life threatening condition that needs a surgical treatment. It can lead to potential infectious sequelae including meningitis, encephalitis, otologic brain abscess and dysfunctional herniated brain tissue can trigger epilepsy. It is caused by chronic otitis media, cholesteatoma, middle ear surgery, trauma, congenital skull base defect and irradiation. We present a case of meningoencephalic herniation into the external auditory canal that had occurred 8 years after open cavity tympanomastoidectomy, which was treated with subtemporal middle cranial fossa approach.
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