Bladder Cancer
Nearly all bladder cancers start in the lining of the bladder. Cancer that is only in the lining is called superficial bladder cancer. If the cancer spreads into the muscle wall of the bladder, it is called invasive bladder cancer.
Canadian Cancer Society
For more information on bladder cancer see:
How common is bladder cancer?
Types of bladder cancer
Bladder Cancer: Risk Factors >>
