PMC5721950_01
(a) The IVC was compressed severely by the huge mass and (b) a retrievable filter was deployed at the level of the distal IVC close to the bifurcation.
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The venogram demonstrated that bilateral iliac veins enlarged and the IVC was compressed severely by the huge mass (Figure 1(a)). The retrievable filter was deployed at the level of the distal IVC close to the bifurcation through the right femoral vein approach (Figure 1(b)).
(a) The venogram demonstrated that the filter tilted with hook embedded in the IVC wall, and there was a interstice between the filter neck and the IVC wall, (b) a 5-F pigtail catheter was remade to be fishhook-like by cutting off the end of it, (c) the soft guidewire was directed through the interstice of the filter neck and the IVC wall and advanced back into the snare and (d) the leading end of the wire was snared and withdrawn into the sheath to form a loop and snare the hook.
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After 5 weeks, the venogram confirmed that the filter tilted with hook embedded in the IVC wall (Figure 2(a)). A 5-F pigtail catheter (Cordis, Fremont, CA, USA) was remade fishhook-like by cutting off the end of it (Figure 2(b)). The soft guidewire was directed through the interstice of the filter neck and the IVC wall and advanced back into the snare (Figure 2(c)). The leading end of the wire was snared and withdrawn into the sheath to form a loop and snare the hook (Figure 2(d)).