Endovascular Thrombectomy in a Patient with Acute Ischemic Stroke due to Tumor Emboli Associated with Cardiac Metastasis of Extraskeletal Myxoid Chondrosarcoma: A Case Report

Figures

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  Figure 1. A. Head computed tomography (CT) scan showing a small hemorrhage (white arrow) in the left corona radiata without an apparent ischemic lesion. B. CT perfusion imaging using VITREA (Canon Medical, Otawara, Japan) showing occlusion of the left internal carotid artery and a massive penumbra lesion (yellow) in the left middle cerebral artery territory; the calculated salvageable volume was 175 mL. C. CT perfusion imaging showing a hypoperfused lesion in the left middle cerebral artery territory. Tmax: time to maximum of the residue function

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  Figure 2. A. Emergent angiogram showing occlusion of the left internal carotid artery. B. Postoperative angiogram showing complete recanalization of the left internal and middle cerebral arteries.

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  Figure 3. A. Photograph showing the white embolus retrieved and lodged in the distal aspiration catheter. B. Histological findings (hematoxylin and eosin staining) of the retrieved embolus showing atypical cuboidal cells proliferating in a small, glandular cavity-like pattern. C. Immunohistochemical staining showing positive S-100 expression in the retrieved tumor cells.