What are the different types of bladder cancer?
There are several types of bladder cancers, including the following: • transitional cell (urothelial) carcinoma Transitional cell carcinoma is cancer that begins in the cells lining the bladder. Transitional cells also line the other parts of the urinary tract including the kidneys, ureters, and urethra. Transitional cell carcinoma is the most common kind of bladder cancer, occurring in about 90 percent of cases. • squamous cell carcinoma Squamous cell carcinoma is cancer that begins in squamous cells – thin, flat cells found in the tissue that form the surface of the skin, the lining of the hollow organs of the body, and the passages of the respiratory and digestive tracts. About 9.5 percent of bladder cancers are squamous cell carcinomas. • adenocarcinoma Adenocarcinoma is cancer that begins in the cells of glandular structures lining certain organs in the body and then spreads to the bladder. Common primary sites for adenocarcinomas include the lung, pancreas, breast, prostate, stom
