Radiation therapy uses high - dose X - rays to destroy bladder cancer cells. It may be used alone, before surgery to shrink the cancer or after surgery to destroy any remaining cancer cells. Radiation therapy may also be used if a person with bladder cancer cannot have surgery. External beam radiation comes from a machine outside the body. The machine aims radiation at the cancer area. Most people
Cystectomy is the surgical removal of all or part of the bladder to treat bladder cancer that has spread into the bladder wall (stages II and III) or to treat cancer that has come back (recurred) following initial treatment.