Sorry you didn't get the pathology report that you were expecting or hoping for. Without giving us more info about the pathology report, it is not possible to make a really meaningful comment. about 3 years ago I had similar stats as your husband (see my signature). I had good post op PSA stats for about 15 month, but then the PSA started to slowly increase. When it reached 0.08 we (Uro, Onc and myself) decided to go to the next level. When radiation stated, my PSA level was 0.1. I had few side effects from the salvage radiation. It is my understanding that radiation has a better chance to succeeding when the PSA level is very low. If the PSA level is relatively high after surgery, adjuvant radiation may be advised by your doctor. If it is quite low, waiting and closely monitoring the level is probably not a bad idea.
Wishing you and your husband all the best.