Rongeuring of the Lesser Wing of the Sphenoid Bone as a Possible Cause of Isolated Abducens Nerve Palsy : A Case Report / 上眼窩裂の削開が原因と考えられる外転神経麻痺の1症例
- Resource Type
- Journal Article
- Authors
- Mitsuo Shimoyama; Susumu Kawaguchi; Takamitsu Uchizawa; Takeshi Kashiwaba; 下山 三夫; 内沢 隆充; 川口 進; 柏葉 武
- Source
- 脳神経外科ジャーナル / Japanese Journal of Neurosurgery. 1995, 4(4):425
- Subject
- cerebral aneurysm
complications
isolated abducens nerve palsy
lesser wing of the sphenoid bone
pterional approach
- Language
- Japanese
- ISSN
- 0917-950X
2187-3100
Reported is a case of isolated right abducens nerve palsy, which appeared immediately after an operation to treat an unruptured internal carotid artery aneurysm. Rongeuring the roof of the superior orbital fissure and compression of its contents are thought to be a cause of this palsy. The abducens nerve runs medial to the trigeminal nerve in the cavernous sinus, after which it runs laterally to the annulus of Zinn. It can be very easily injured at this point by any compression from the lateral side. A reasonable extension when removing the lesser wing of the sphenoid bone is also discussed.