“…This Special Issue aims to cover novel approaches in renal and urothelial cancers. We collected papers focused on novel approaches to urothelial cancers involving upper urinary tract and renal cancers that undertook original research focused on pre-clinical studies and biomarkers [ 9 , 10 , 11 , 12 ], prognostic models [ 13 , 14 , 15 ], the specific population of metastatic patients [ 16 ], and, finally, two narrative reviews [ 17 , 18 ].…”