Middle fossa repair of bilateral large congenital tegmental defects with meningoencephaloceles

Spontaneous temporal meningoencephaloceles are unusual. When they do occur, they present with a variety of signs and symptoms, which can make diagnosis and management challenging. We report the interesting case of a 49-year-old woman with bilateral congenital temporal meningoencephaloceles. She presented with a 12-month history of bilateral fluctuating hearing loss, and she more recently developed right-sided acute otitis media with meningitis. The presentation of bilateral extensive tegmental defects and meningoencephaloceles with a fluctuating hearing loss and meningitis associated with acute otitis media affecting one ear and then subsequently the other ear is extremely rare and difficult to diagnose. It requires a very careful clinical and radiologic assessment. Methods of surgical repair differ depending on the size of the defects.