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Endoscopic appearance. (a) Appearance of the inflamed ureter around the double-pigtail stent after stent removal. (b) Dilation of the ureter without inflammation after pigtail-suture stent implantation. (c) Inflamed ureteral orifice around the double-pigtail stent. (d) Dilated ureteral orifice without inflammation after pigtail-suture stent implantation.
