Figure 2.

Schematic diagram of appendiceal onlay flap ureteroplasty. (A) Exposing the area of operation and probing the appendix; (B) mobilizing the right colon; (C) resecting the appendix from the caecum with the mesoappendix preserved; (D) managing the ureteral strictures, rebuilding the posterior wall, and leaving a defect in the anterior wall; (E) creating an appendiceal onlay flap with its mesoappendix preserved, and its length was the same as the defect of the anterior wall; (F) the appendiceal onlay flap was anastomosed on the anterior wall.