Spinal Subarachnoid Hemorrhage Caused by a Mycotic Aneurysm of the Radiculomedullary Artery: A Case Report and Review of Literature
Abstract
We report a case of spinal subarachnoid hemorrhage (SAH) caused by rupture of a mycotic anerurysm. A 59-year-old woman was admitted to our hospital with a sudden onset of headache and tetraparesis. Computed tomography (CT) scan of the brain revealed SAH, and magnetic resonance imaging (MRI) of the cervical spine showed an acute intradural hematoma. On angiogram, a saccular aneurysm was found on the C5 radiculomedullary artery, which arose from the left ascending cervical artery. Subsequently, her consciousness status deteriorated due to rebleeding, and she was brought to surgery. An aneurysm was found at the cephalad aspect of the left C5 root. On histological examination, it showed typical characteristics of mycotic aneurysms. Spinal mycotic aneurysm is a very rare entity with scant description in the literature. It can be extremely brittle and therefore warrants expeditious surgical treatment. When encountering spinal origin of subarachnoid hemorrhage, it should be included in the differential diagnosis
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