Fig. 2
From: Congenital mid-ureteral stricture: a case report of two patients
(a) Preoperative ultrasound showed SFU grade 4 hydronephrosis. (b) Retrograde pyelogram demonstrated right ureteral stricture at the level of the right mid-sacroiliac joint with proximal mega-ureter. (c) Laparoscopic view of the mid-ureteral stricture. (d) Image obtained at the end of the laparoscopic ureteroureterostomy. (e) Retrograde pyelogram showed a patent ureteral lumen after double-J stent removal