| Cervical Schwannoma Presenting with Acute Intracranial Subarachnoid Hemorrhage. |
| Cheol Ji, Jae Geun Ahn, Han Yong Huh, Chun Kun Park |
1Department of Neurosurgery, St. Paul's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea. yong2@chol.com
2Department of Neurosurgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea. |
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| ABSTRACT |
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A subarachnoid hemorrhage (SAH) associated with negative finding on four-vessel angiography is seen in 5 to 30% of patients with intracranial SAH. A previously silent lesion in the spinal canal may be responsible for the angiographically negative finding for cause of intracranial SAH. We report a case of upper cervical (C1-2) intradural schwannoma presenting with acute intracranial SAH. Repeated cerebral angiographic studies were negative, but cervical magnetic resonance imaging study and tissue pathology revealed a intradural-extramedullary schwannoma in C1-2 level. This case illustrates the importance of a high index of clinical suspicion for spinal disease in angiographically negative intracranial SAH patients. |
| Key Words:
Spinal schwannoma; Subarachnoid hemorrhage |
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