Interesting that you mentioned quantum physics. I direct your attention to the "Heisenberg Uncertainty Principle" --
en.wikipedia.org/wiki/Uncertainty_principle -- which provides a useful metaphor for the central underlying fact of prostate cancer:
You just never get to know anything for sure.I'd go with the post-op pathology report for two purely probabilistic reasons:
1) it is more likely to be right.
2) it is less likely to make you crazy.