The Performance of Tumor Size as Risk Stratification Parameter in Upper Tract Urothelial Carcinoma (UTUC)

In this multicenter observational study, we evaluated different tumor diameters for identifying ≥ pT2 upper tract urothelial carcinoma at radical nephroureterectomy. In preoperative predictive models including 932 patients, the > 2-cm cutoff (odds ratio, 2.38; 95% confidence interval, 1.70-3.32; P <.001) was independently associated. This tumor size threshold could help to best select patients for kidney-sparing surgery.