Mechanical Thrombectomy for Acute Middle Cerebral Artery Occlusion Caused by Tumor Embolism: A Case Report

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  • Moriyama Takuya
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Sugiura Yuri
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Hayashi Yuto
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Kinoshita Fukuaki
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Yamamura Ryohei
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Moriya Masayuki
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Tatsumi Chikao
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Nagatsuka Kazuyuki
    Department of Neurology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Ishihara Masahiro
    Department of Neurosurgery, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Nishio Masami
    Department of Neurosurgery, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Tamura Hiromi
    Department of Diagnostic Pathology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Adachi Shiro
    Department of Diagnostic Pathology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
  • Akazawa Yuki
    Department of Thoracic Oncology, Osaka Toneyama Medical Center, Toyonaka, Osaka, Japan

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<p>Objective: We report a case of acute middle cerebral artery (MCA) occlusion caused by tumor embolism.</p><p>Case Presentation: A 64-year-old man with lung cancer presented with sudden onset left-sided hemiparesis and sensory disturbance. Diffusion-weighted imaging (DWI) revealed hyper-intense foci in the right MCA territory and magnetic resonance angiography (MRA) demonstrated right MCA M2 segment occlusion. Mechanical thrombectomy (MT) was performed with Thrombolysis in Cerebral Infarction 2B recanalization. On histopathology, thrombus composed of fibrin and squamous cell carcinoma was observed. We diagnosed him with tumor embolism from lung cancer that invaded the pulmonary vein and the left atrium.</p><p>Conclusion: Tumor cells may be confirmed by pathological examination regardless of the morphology of the embolus. Pathological examination of the cerebral embolus is useful for the accurate diagnosis of ischemic stroke subtypes.</p>

収録刊行物

  • 脳神経血管内治療

    脳神経血管内治療 15 (1), 52-57, 2021

    特定非営利活動法人 日本脳神経血管内治療学会

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