抄録
A 46-year-old female presented with amaurosis fugax. Left vertebral angiography revealed a nonruptured left vertebral artery aneurysm. The aneurysm was located at the level of the cervi-comedullary junction just outside the dura mater. Clipping was done without dural incision. Recently, reports of dissecting aneurysm of extracranial vertebral artery have been increasing. However, nondissecting aneurysms of extracranial vertebral artery are still rare and the majority of extracranial vertebral artery aneurysms are pseudoaneurysms and usually develop secondary to injuries. To our knowledge, six extracranial vertebral artery saccular aneurysms, including our case, without any trauma, inherited disorder or inflammatory lesion have been reported. We report clinical course and discuss the details of the aneurysm at this site.
