I hope you realize they cannot predict with excellent accuracy if you have 'micro mets' or cells that spread beyond the gland. Biopsies can not define precisely escape of micro mets, biopsies are even tainted by factors of defining: gleason score properly, what about
many types of variants in PCa (they are not always understood, especially by average pathologists), you have DNA ploidy of the PCa cells that could be tested for but usually aren't, you have missed biopsy areas that could in fact harbor a different Gleason score and even a different variant type of PCa (this has been proven).
The docs run nomograms and partin tables or s.w.a.g. as to what they think your situation actually is, they have been proven wrong numerous times and biased. We have guys herein with low stats and post surgery clear margins and the all good signal and some of them yet failed to be cured even within a couple years BCR (failure of psa) happened. With PNI (perinueral invasion) it is possible for PCa cells to escape, doesn't mean they did even if known in your few biopsies analyzed, but could have just via this method.....will not show up on any scans known until you have a pretty measurable mass of it, in order to show up on a scan. So, we are dealing with plenty of unknowns in PCa and this helps account for a large percentage of failures in surgery or other treatments. Try running your own stats in a nomogram as atleast an averages comparative thing, still won't tell you how you would do individually. Just trying to shed light on the reality in PCa, we used to be told years ago that scans were definitive and .20 or higher was the defined failure psa level (post treatments), we know this is not the truth today. Based upon that beautiful history and much more I could site, best to question everything and all the time....(perhaps). Best to your decisions.
Test that could be done (some like these): PAP, UnTx or Pyrilinks urine testing for bone breakdown (defines mets), other markers on blood tests as seen in Dr. Strum's book A Primer on Prostate Cancer and there are others, like CTC (circulating tumor cells blood testing), lymphnode biopsies are even a separate concept (not often done). There are some scans that appear to be better than standard ct and bone scans.
Post Edited (zufus) : 10/2/2012 8:23:12 AM (GMT-6)