“…To date, several studies have identified possible risk factors for subsequent intravesical recurrence in patients treated surgically for UTUC [3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24]. Proposed risk factors include tumor configuration, tumor multifocality, tumor stage and grade, tumor location, tumor size, lymphovascular invasion (LVI), patient gender, adjuvant chemotherapy, preoperative urine cytology, synchronous bladder cancer, diagnostic ureteroscopy (DURS), hydronephrosis, and diabetes mellitus (DM).…”