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[Neurinoma of the 8th cranial nerve. Surgical indications in neurofibromatosis].

There are two types of neurofibromatosis, i.e. peripheral neurofibromatosis (type 1) and central neurofibromatosis (type 2). Neurinomas of the acoustic nerve are basically seen in central neurofibromatosis, in which case they are generally bilateral. Surgical indications for neurinoma are rare and 5 patients will be discussed: 2 of these underwent an operation on the neurinoma by the posterior route on several occasions, while 1 patient was operated by the trans-labyrinth route. Nuclear magnetic resonance remains the best means of monitoring.