Transitional cell carcinoma (TCC), also known as urothelial carcinoma, is a malignancy originating in the urothelial cells lining the urinary tract, including the bladder, ureters, and renal pelvis. Although upper urinary tract transitional cell carcinoma (UTTCC) accounts for only about 5% of all urothelial cancers and less than 10% of kidney tumors, its rising incidence is prompting growing...