Prognostic Impact of pT3 Subclassification in a Multicentre Cohort of Patients with Urothelial Carcinoma of the Renal Pelvicalyceal System Undergoing Radical Nephroureterectomy: A Propensity Score-weighted Analysis After Central Pathology Review

Subclassification of pT3 upper tract urothelial carcinoma of the renal pelvicalyceal system based on the extent of local invasion may have a prognostic interest that could further help refine the current pathological tumour-node-metastasis system for these tumours.