At 80 years old I was diagnosed with stage 4 bladder cancer. They could only remove about 65-70% of the tumor. I underwent a PET scan and the cancer had not spread. The Doctor suggested a complete removal of my bladder, rather than chemotherapy. What are the risks involved? All possible side-effects? I have always maintained a healthy and active lifestyle. I am suppose to go to Miami, FL to get the possible surgery...is this safe at my age? What all does this involve?