{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T19:51:30Z","timestamp":1774468290619,"version":"3.50.1"},"reference-count":13,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background: <\/jats:title>\n<jats:p>With the increase in endovascular treatment, reports of embolism other than thrombus are scattered, but intracranial tumorigenic embolism is rare and difficult to diagnose. Here, we describe a case of a tumorigenic embolism in a patient with lung cancer whose invasion into the vascular system was not detected on preoperative whole-body imaging.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description: <\/jats:title>\n<jats:p>A 66-year-old man who was hospitalized to undergo radiotherapy for pulmonary carcinoma suddenly developed left hemiplegia. He exhibited atrial fibrillation, and emergent radiographic examination revealed a right middle cerebral artery occlusion. Urgent mechanical embolectomy was performed, with successful revascularization. The excised embolus had a unique morphology and was pathologically diagnosed as a cerebral embolism caused by pleomorphic pulmonary carcinoma.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion: <\/jats:title>\n<jats:p>Tumor-derived cerebral embolism is extremely rare, but it is necessary to consider it as a potential source of embolism during differential diagnosis in patients with malignant tumors.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_37_2020","type":"journal-article","created":{"date-parts":[[2020,8,1]],"date-time":"2020-08-01T05:43:44Z","timestamp":1596260624000},"page":"217","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A case of cerebral infarction due to pleomorphic carcinoma of the lung"],"prefix":"10.25259","volume":"11","author":[{"given":"Shinichiro","family":"Yoshikawa","sequence":"first","affiliation":[{"name":"Stroke Center, Department of Cerebrovascular Surgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan."},{"name":"Stroke Center, Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoya","family":"Kamide","sequence":"additional","affiliation":[{"name":"Stroke Center, Department of Cerebrovascular Surgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shigen","family":"Kasakura","sequence":"additional","affiliation":[{"name":"Stroke Center, Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Noriko","family":"Arai","sequence":"additional","affiliation":[{"name":"Stroke Center, Department of Neurology, Saitama Medical University International 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