Having an RP and follow up radiation 2 years later I have to wonder about the frequency percentage of left behind cells post-surgery and subsequent radiography to deal with it. Without investigation I suspect it is high. If I had to do it all over again, I would do a deep dive on rad vs RP. I hear of many that have to go back within two years for cells left behind. I know someone that is going with radiation for G9 for this reason and will be interested to see how it works out.