Cervical schwannoma presenting with acute intracranial subarachnoid hemorrhage.
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.
Department of Neurosurgery, St. Paul's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
Cheol
C
Ji
Jae-Geun
JG
Ahn
Han-Yong
HY
Huh
Chun-Kun
CK
Park
Spinal schwannoma; Subarachnoid hemorrhage