<unk>  is a type of transitional cell carcinoma. It is a type of cancer that develops in the urinary system: the kidney, urinary bladder, and accessory organs. Transitional cell carcinoma is the most common type of bladder cancer and cancer of the ureter, urethra, renal pelvis, the ureters, the bladder, and parts of the urethra and urachus. It originates from tissue lining the inner surface of these hollow organs - transitional epithelium. The invading tumors can extend from the kidney collecting system to the bladder. Carcinoma (from the Greek karkinos, or "crab", and -oma, "growth") is a type of cancer. A carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that generally arises from cells originating in the endodermal or ectodermal germ layer during embryogenesis.
Invasive urothelial carcinoma
Transitional cell carcinoma
Eosinophilic cystitis
Emphysematous cystitis
Collecting duct carcinoma
High-grade prostatic intraepithelial neoplasia
Interstitial cystitis
Benign prostatic hyperplasia