[Meningiomas of the cerebellopontile angle].

Meningiomas of the cerebellopontine angle are the second most frequent type of tumours in that region and constitute more than one-third to one-half of all meningiomas of the posterior cranial fossa. On account of their vulnerable position in relation to the cranial nerves and due to the lack of available space, good postoperative results and a minimum of cranial neurological deficits can be achieved only if they are identified well in time and surgically removed. Basing on case histories and follow-ups of 15 selected patients, preoperative and postoperative symptoms of meningiomas of the cerebellopontine angle are discussed, possible misinterpretations pointed out and recommendations worked out to achieve an early clarification or surgical treatment.