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Bookmark not defined., 12 , and 2 with flank pain with or without dysuria 8 . Management options vary widely in the literature. Of the 16 cases, there was no intervention in 2 8 , ureteral repositioning in 1 8 , ureteric stents in 4 8,11 , right gonadal vein ligation and filter removal in 1 Error! Bookmark not defined., life-long nephrostomy to drain kidney (after failed stenting) in 1 5 , hemostatic clips placed robotically on exposed wire in 1 6 , robotic dissection to free up the prongs in 1 7 , and open excision with or without caval reconstruction (after endovascular techniques failed) in 5 [7][8][9][10]12 .There are several learning points from our unique case. Although rare, IVC filters can erode into the ureter so should be removed as soon as thrombotic protection is no longer needed.Error! Bookmark not defined. This case provides a reminder to be suspicious of caval penetration if a patient with an IVC filter presents with flank pain. If a filter leg has eroded into the ureter, a patient can be symptomatic without hydronephrosis therefore removing the filter may resolve symptoms. Though treatment of IVC filter erosion into the renal pelvis and collecting system remains uncertain due to few reported cases and limited experience, combined endoscopic and endovascular approaches may be successful in avoiding the morbidity associated with a major operation. CUAJ -Residents' Room Jacox et al Case: Combined endoscopic/endovascular management of IFC filter erosion 4

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