Well before my formal diagnosis and based only on the MRI the nurse said, "we don't know if you have cancer, but if you have it is T3 N0 and we're booking you in for a biopsy and bone scan".
Anyway it was T3 N0 M0. The mere fact you are 57 means you are more likely to have PCa than not to have it. What is your PSA?
For the majority of men PCa will have little impact on their lives and should be left alone. For people on this forum the consequences have been a bit more severe, but that's the reason we are on this forum because we have problems we need to discuss.
If you're lucky you will have nothing, or it will need nothing but keeping an eye on. Even with my moderately aggressive cancer the chances of dying within five years was miniscule, but the odds beyond ten years were looking less favourable so I got treatment.