• Neurocritical care · Apr 2015

    Review Case Reports

    A Cause of Atypical Intracranial Subarachnoid Hemorrhage: Posterior Spinal Artery Aneurysms.

    • Gabriele Ronchetti, Saul F Morales-Valero, Giuseppe Lanzino, and John T Wald.
    • Department of Neurosurgery, University and Civil Hospital of Brescia, Brescia, Italy.
    • Neurocrit Care. 2015 Apr 1; 22 (2): 299-305.

    BackgroundApproximately 1 % of cases of intracranial subarachnoid hemorrhage (SAH) are caused by spinal vascular pathologies. Among them, isolated spinal artery aneurysms are uncommon and a limited number of cases have been reported in the literature.MethodsThis is a report of two cases and review of the literature.ResultsBoth patients presented with an atypical intracranial SAH and were also found to have spinal SAH caused by a ruptured posterior spinal aneurysm.ConclusionIsolated spinal artery aneurysms represent a rare cause of intracranial SAH. Symptoms such as back pain and lower-extremity weakness can be clues to the adequate diagnosis. Surgical or endovascular treatment should be pursued in all patients, as the risk of rebleeding is non-negligible.

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