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Case 3: Bilateral lower limb swelling of 5 days’ duration, 25 months after filter implantation. (A) After recanalization by guide wire, the cavogram displayed a large thrombus in the infrarenal IVC and a Vena Tech filter in the thrombus. (B) After 11 days of thrombolytic therapy, the residual thrombus in the IVC was <10%. IVC, inferior vena cava.
