Rare Dilated Collateral Circulation from Accessory Meningeal Artery to Inferolateral Trunk: A Case Report

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  • IKEZAWA Mizuka
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • MAEDA Kenko
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • TAKASU Syuntaro
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • TAKEMOTO Masaya
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • NISHIHORI Masahiro
    Department of Neurosurgery, Nagoya University Graduate School of Medicine
  • CHOO Jungsu
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • SAGO Fumihiro
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • SOMIYA Daiki
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • DOBA Kohei
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital
  • IKEDA Akira
    Department of Neurosurgery, Japan Community Health Care Organization Chukyo Hospital

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説明

<p>The accessory meningeal artery (AMA) demonstrates various potential anastomoses with the external (ECA) and internal (ICA) carotid arteries. However, rarely does the AMA markedly dilate and compensate for ICA blood flow. A 52-year-old woman with nonspecific symptoms was diagnosed with multiple cerebral aneurysms and abnormal blood vessels observed on magnetic resonance angiography. Digital subtraction angiography revealed four aneurysms and anastomoses between the left AMA and inferolateral trunk (ILT). In addition, two sequential severe flexions were observed in the cervical portion of the left ICA. No ischemic lesions were detected on magnetic resonance imaging. In conclusion, we experienced a rare case in which the AMA-ILT anastomosis was highly developed. This case also presented with the unusual characteristics of an anomaly in the extracranial ICA and multiple aneurysms.</p>

収録刊行物

  • NMC Case Report Journal

    NMC Case Report Journal 10 (0), 47-50, 2023-12-31

    一般社団法人 日本脳神経外科学会

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