A large thrombosed aneurysm of distal anterior cerebral artery presenting with ischemic stroke because of aneurysmal mass effect: case report

  • Hirayama Kosuke
    Department of Neurosurgery, Nagasaki Prefecture Shimabara Hospital
  • So Gohei
    Department of Neurosurgery, Nagasaki Prefecture Shimabara Hospital
  • Noda Mitsuru
    Department of Neurosurgery, Nagasaki Prefecture Shimabara Hospital
  • Tokunaga Yoshiharu
    Department of Neurosurgery, Nagasaki Prefecture Shimabara Hospital

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Other Title
  • 動脈瘤のmass effect より虚血発症を来した前大脳動脈遠位部大型血栓化動脈瘤の1 例

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A 52-year-old male was presented with left hemiparesis. Magnetic resonance imaging revealed right frontal lobe infarction. Computed tomography and digital subtraction angiography revealed a large partial thrombosed aneurysm of the distal right anterior cerebral artery and occlusion of the right pericallosal artery. Operation views showed the mechanical obstruction of right pericallosal artery induced by mass effect of the thrombosed aneurysm. The aneurysm was dome-clipped, and the residual neck was coated 23 days after admission. The patient is doing well 6 months after operation, and the residual neck regrowth is not recognized, but careful follow-up must be necessary in future.

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