Pre-mesencephalic subarachnoid hemorrhage: rupture of tiny aneurysms of the basilar artery perforator |
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| Authors: | Sukh Que Park O-Ki Kwon Seong Hyun Kim Chang Wan Oh Moon Hee Han |
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| Affiliation: | (1) Department of Neurosurgery, Korea Cancer Center Hospital, Seoul, Korea;(2) Department of Neurosurgery, School of Medicine, Seoul National University, Neuroscience Center, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707 Seoul, Korea;(3) Department of Radiology, Seoul National University School of Medicine, Seoul, Korea;(4) Neuroscience Center, Seoul National University Bundang Hospital, Seoul, Korea;(5) Department of Radiology, Seoul National University Hospital, Seoul, Korea; |
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| Abstract: | Purpose Subarachnoid hemorrhage (SAH) around the midbrain without evidence of aneurysm, a so-called perimesencephalic SAH, has been considered a typical nonaneurysmal SAH. Recently, we have encountered several patients with SAHs that could have been classified as having perimesencephalic SAH, but a common cause of the bleeding was demonstrated. In this article, we describe clinical and radiologic characteristics of these patients. |
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