<unk> , also called urothelial carcinoma, is a type of cancer that typically occurs in the urinary system. It is the most common type of bladder cancer and cancer of the ureter, urethra, and urachus. It accounts for 95% of bladder cancer cases. It is the second most common type of kidney cancer, but accounts for only five to 10 percent of all primary renal malignant tumors.<unk> s arise from the<unk>  epithelium, a tissue lining the inner surface of these hollow organs. When the term "urothelial" is used, it specifically refers to a carcinoma of the urothelium, meaning a<unk> s of the urinary system.
Transitional cell carcinoma
Invasive urothelial carcinoma
Collecting duct carcinoma
Clear cell renal cell carcinoma
Papillary renal cell carcinoma
Renal medullary carcinoma
Hyalinizing clear cell carcinoma
Clear cell papillary renal cell carcinoma