case_images: PMC6340374_01
case_images: (a) Preoperative CT scan (red arrow shows the stone); (b) preoperative CT scan (red arrow shows the retrocaval ureter).
case_images: fig-1.jpg
case_images: PMC6340374_01_fig-1.jpg
case_images: f1
case_images: A direct abdomen CT scan (Fig. 1) showed an 8 mm ureteral stone with suspected retrocaval course of right proximal ureter with no hydronephrosis.
case_images: Right retrograde pyelography.
case_images: fig-2.jpg
case_images: PMC6340374_01_fig-2.jpg
case_images: f2
case_images: After spinal anesthesia, a semirigid ureteroscopy after a right retrograde pyelography was performed (Fig. 2).
case_images: Retrograde flexible ureteroscopy.
case_images: fig-3.jpg
case_images: PMC6340374_01_fig-3.jpg
case_images: f3
case_images: The stone was easily found in an inferior calix (Fig. 3) and taken off with a Zero Tip nitinol basket without intrarenal lithotripsy.