Elsevier, International Journal of Surgery Case Reports, (10), p. 56-58, 2015
DOI: 10.1016/j.ijscr.2015.03.014
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•We previously reported the new strategy (UARN) for PCNL.•UARN is a useful procedure for percutaneous nephrolithotripsy because of continuous visualization with ureteroscopy.•UARN requires ureteral access sheath (UAS). UAS has a potential risk of ureteral stricture.•We herein report the first case of UARN without the use of UAS.