Kevin on LI:
You will receive shortly some good responses from very knowledgeable guys who have been through radiation after surgery, but in the meantime let me get you to clarify some things that they may want to know:
You received a PSA reading of 58 on June 10th (last Thursday). When were you actually tested? Were there a test between the end of your radiation treatment and that test? If so, what was your PSA reading from that test(s)?
Then you "retested to rule out an error" - when? On June 10th? When did you get the test results - today (the 14th)? What was that result (I know ... "in the 50's," but where exactly in the 50's)?
I'll now step aside and let the big guns weigh in.
Good luck.
Zen9