Welcome to HealingWell. As you posted on BARR's thread I say the same to you. 8 Years before relapse, if this is a relapse, is a tell tale sign that we all must remain diligent with this disease. Your quation asks if this could be a false positive, and absolutely is the answer. But a few tests will confirm relapse and if so there is much that can be done. I believe in the power of positive thinking and I would say stay positive. If this is a relapse it is quite possible that radiation is all that is needed.
You do not mention your husbands age or original pathology after the surgery. If you have that information then sharing it will help you find similar stories.
Again, welcome to HW,
Age 47 (44 when Dx)
Pre-op PSA was 19.8 : Surgery at The City of Hope on February 16, 2007
Geason 4+3=7, Stage pT3b, N0, Mx
Positive Margins (PM), Extra Prostatic Extension (EPE) : Bilateral Seminal vesicle invasion (SVI)
HT began in May, '07 with Lupron and Casodex 50mg (2 Year ADT)
IMRT radiation for 38 Treatments ending August 3, '07
Current PSA (May 11, 2009): <0.1