I think you are overthinking or working yourself into a panic. Why are you assuming that the cancer is suppressed rather than killed? If you are concerned that your PSA isn't low enough, you have misunderstood what to expect of PSA readings post-RT - your PSA readings are excellent. In response to your questions:
1 With my original diagnosis is it likely the cancer will return?
With any treatment (radiotherapy, surgery, focal treatments) there is a risk of the cancer returning but they wouldn't have given you the RT if they didn't believe it was curable
2 If so, in what timescale, 6 months? a year? 2 years?
No one would be able to say - my dad's recurrence was about 15 years after his treatment but his PSA is climbing so slowly that he has still not needed any further treatment 7 years after the recurrence.
3 Has anyone, having finished Zolodex treatment and been on 6 monthly PSA tests, then moved, at their request, to 3 monthly PSA tests ?
There is generally no point going to 3 monthly testing as the oncologist wouldn't see you until you got to 2.02 anyway. However, there is no harm in asking your GP for 3 monthly tests starting 3 months after the last injection runs out (so 4 months from now).
4 Is an increase PSA to 2.1 a general yardstick to indicate the cancer has returned?
Biochemical recurrence is defined as 2.0 plus your lowest reading so 2.02
5 If and when, the cancer returns what further treatment can I expect? - another CT scan ?, Radiation - Not allowed ?, Zolodex injections for another say 2-3 years? Any other treatment?
Lifelong HT - possibly with chemotherapy or a new generation additional hormone
Edited by member 04 Dec 2022 at 01:08
| Reason: italics