Bladder cancer develops when healthy cells in the bladder lining, most commonly urothelial cells, change and grow uncontrollably, forming a tumour. Urothelial cells line the renal pelvis, ureters, and urethra as well. Cancer that develops in the renal pelvis and ureters is also classified as urothelial cancer and is commonly referred to as upper tract urothelial cancer.
Track 2-1.Urothelial carcinoma
Track 2-2.Squamous cell carcinoma