A knotted ureteral stent

The use of ureteral stent has became an integral part of urological practice. However, its use is not without complications. Stenting knotting represents a rare complication but can be difficult to manage, with less than 30 cases reported in the literature. We report a case in which a complete knot was found in the proximal coil of an indwelling ureteral stent. The knotted stent was untied and removed successfully by ureteroscopy under fluoroscopic guidance.