case_images: PMC10749223_01
case_images: Coronal non-contrast CT scan showing 10 mm obstructive Right proximal ureteric calculus and gross right hydronephrosis.
case_images: gr1.jpg
case_images: PMC10749223_01_gr1.jpg
case_images: fig1
case_images: Initial US scan was inconclusive; A non-contrast CT scan confirmed the presence of a 10 x 8 mm calculus in the proximal ureter at the level of L4 (Fig. 1).
case_images: Retrograde Pyelogram showing extremely tortuous upper ureter with a retropulsed stone.
case_images: gr2.jpg
case_images: PMC10749223_01_gr2.jpg
case_images: fig2
case_images: At that time, a retrograde pyelogram showed a suspicious tortuous upper ureter (Fig. 2).
case_images: Ureteroscopy showed an intussuscepted ureter with a wire passing into the lumen of the intussusceptum, To the renal pelvis in the ureteric lumen.
case_images: gr3.jpg
case_images: PMC10749223_01_gr3.jpg
case_images: fig3
case_images: Upon advancing the ureteroscope, an upper ureteric intussusception was identified in the ureteric tortuosity below the stone (Fig. 3) (video 1) and was reduced using hydrostatic pressure.