The major problems in skull base surgery are caused by petroclival meningiomas. Intraoperative orientation is difficult. Nerves and vessels penetrate the tumor. The protective arachnoid sheets of the cranial nerves are destroyed by the tumor. The oblique position of the head on the table must be taken into consideration.
KeywordsSinus Sphenoidalis Exit Point Foramen Jugulare Petrous Bone Skull Base Surgery
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