American Journal of Neuroradiology 26:2415-2419, October 2005
© 2005 American Society of Neuroradiology
Case Report
SPINE
Subarachnoid Hemorrhage Due to Isolated Spinal Artery Aneurysm in Four Patients
a Division of Neuroradiology, Barrow Neurological Institute, Phoenix, AZ
b Division of Neurological Surgery, Barrow Neurological Institute, Phoenix, AZ
Address correspondence to Robert F. Spetzler, MD, c/o Neuroscience Publications, Barrow Neurological Institute, 350 W. Thomas Road, Phoenix, AZ 85013
Summary: Spinal artery aneurysms are usually found with arteriovenous malformations or other entities that increase hemodynamic stress. Isolated spinal artery aneurysms are rare. Four patients who presented with the acute onset of lower back pain underwent MR imaging, which revealed spinal subarachnoid hemorrhage. In all patients, work-up yielded a diagnosis of isolated spinal aneurysm, and operative treatment was successful. In the appropriate clinical setting, spinal aneurysm should be considered as a possible cause of spinal subarachnoid hemorrhage.
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