Dissection Aneurysm of the Radiculomedullary Branch of the Artery of Adamkiewicz With Subarachnoid Hemorrhage -Case Report-

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  • IIHOSHI Satoshi
    Department of Neurosurgery, Sapporo Medical University School of Medicine
  • MIYATA Kei
    Department of Neurosurgery, Sapporo Medical University School of Medicine
  • MURAKAMI Tomohiro
    Department of Neurosurgery, Sapporo Medical University School of Medicine
  • KANEKO Takahisa
    Department of Neurosurgery, Sapporo Medical University School of Medicine
  • KOYANAGI Izumi
    Department of Neurosurgery, Sapporo Medical University School of Medicine

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  • —Case Report—

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A 60-year-old female presented with sudden onset of severe headache and back pain, followed by nausea. The initial head computed tomography (CT) scan revealed posterior fossa subarachnoid hemorrhage (SAH). Spinal T2-weighted magnetic resonance imaging demonstrated SAH, and a homogeneous and slightly low signal intensity mass at T11. Spinal angiography in the early arterial phase revealed a small pearl and string-like aneurysm of the proximal radiculomedullary artery on the left side at the T12 level. Forty days after the onset of SAH, CT angiography demonstrated complete occlusion of the dissecting aneurysm and the preserved anterior spinal artery. The present case of ruptured dissecting aneurysm of the radiculomedullary branch of the artery of Adamkiewicz with SAH underwent subsequent spontaneous occlusion, indicating that the wait-and-see strategy may be justified and will provide adequate treatment.<br>

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