脳神経外科速報

Orbitozygomatic approach は通常の前頭側頭開頭によるtranssylvian approach と比較し，広く浅い術野が得られるだけではなく，手術器具の操作範囲が広がる8，12）のが特徴です．Look down の手術には必要なく，高位脳底動脈瘤や中脳，視床下部の病変などlook up の手術時に有用です．

Malignant peripheral nerve sheath tumor originated from the intracranial trigeminal nerve is rare. We report a 21-year-old woman with malignant peripheral nerve sheath tumor of the trigeminal nerve. She presented with a right severe cheek pain. Preoperati

In this paper, the authors describe two cases of subarachnoid hemorrhage due to ruptured blood blisterlike aneurysm that was located at the anterior wall of the internal carotid artery. This type of aneurysm possesses very thin and fragile aneurysmal wall