The Effect of Diagnostic Ureterorenoscopy on Intravesical Recurrence in Patients Undergoing Nephroureterectomy for Primary Upper Tract Urinary Carcinoma.

The objective of this study is to evaluate the effect of diagnostic ureterorenoscopy (URS) prior to radical nephroureterectomy (RNU) on intravesical recurrence (IVR), in patients with primary upper urinary tract urothelial carcinoma (UTUC).