12 May 2025
: Case report 
Enhancing Renal Stone Management: Tip-Flexible Ureteral Access Sheath in Cystine Stone Surgery
Unusual clinical course
Ting Xu BCEF 1, Kristine Joy Shan Kwan
ABCDEF 2, Lin Xiong ABE 1*
DOI: 10.12659/AJCR.946800
Am J Case Rep 2025; 26:e946800
Figure 1 Computed tomography scan of the patient at different time points for comparison. (A) Large right renal cast stone with insignificant left renal stones; (B) Intact right double-J stent at 1 month postoperatively. The size of the left renal stones remains insignificant; (C) Obviously enlarged left renal stone at 7 months postoperatively, while the right kidney remains stone-free.