Objective: Trousseau syndrome (TS) is a condition of systemic thrombosis generally associated with an underlying malignancy. An ischemic stroke is a representative thrombotic event. Thrombectomy is a useful procedure for the treatment of cerebral large vessel occlusion, and anticoagulation therapy is the main preventive treatment for TS. This case report describes a woman with terminal pancreatic tumor presenting with repeated occlusions of cerebral and coronary arteries necessitating multiple

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... hrombectomies. Case Presentation: A 67-year-old woman was admitted to our hospital with severe right hemiplegia and global aphasia. MRI revealed left M1 occlusion; therefore, a thrombectomy was performed. Her symptoms recovered completely. Body contrast CT revealed pancreatic cancer with multiple metastases, and she was diagnosed with TS. On day 4 after thrombectomy, the same neurological symptoms occurred and re-occlusion of the left M1 was confirmed. Endothelial injury was suspected, and thrombectomy was repeated. Despite continuing anticoagulation therapy, the coronary artery was occluded and she underwent percutaneous coronary intervention on day 13. To treat the primary pancreatic lesion, she was transferred to the Surgery unit on day 20. Conclusion: Hypercoagulability associated with TS and endothelial damage due to rough procedure resulted in repeated vessel occlusions in this case. Careful thrombectomy and anticoagulation therapy with strict monitoring are needed in TS patients.