MP56-12 UPPER TRACT RECURRENCE RISK BASED ON DRAINAGE METHOD FOR URETERAL OBSTRUCTION PRIOR TO RADICAL CYSTECTOMY. (May 2022) - Yip, Wesley; Sjoberg, Daniel; Wong, Nathan; de Jesus Escano, Manuel; Jiang, Song; Chu, Carissa; Benfante, Nicole; Donat, Sherri; Herr, Harry; Dalbagni, Guido; Bochner, Bernard; Cha, Eugene