what are the four stages of bladder cancer?
The cancer has not spread to the lymph nodes or other parts of the body (T3, N0, M0). Stage IV: The tumor has invaded nearby organs or to the outer layer of fat of the kidney (T4, NX or N0, M0), or the cancer involves the lymph nodes (any T, N1 or N2, M0), or there is distant metastasis (any T, any N, M1).