There are several schools of thought on early HT and you will probably hear from all camps. I opted to delay HT for three years after my unsuccessful RP and I already had bone involvement when my treatments began last September. My PSA was only about 3 when this was discovered so I didn't see it coming. (bone mets with a PSA under 10 are rare) Despite the skeletal involvement I am currently responding well to the HT. I did have a sodium f18 bone scan at Sand Lake Imaging in Florida and it did appear much more sensitive than a planar bone scan showing numerous lesions. Don't however compare my results with your case as I had positive nodes in my post op pathology. HT does not empty your arsenal should you become resistant. Second line HT, Chemo agents and new drugs just out of trial will be in your toolbox. The F18 scan seems a good place to start. Worse case scenario it identifies any targets early. Best case it puts your mind at ease.
Very best of luck.
11/08/08 annual checkup (3 yrs late) PSA 8.04 from previously 2.7 in 11/05
1/23/09 biopsy 12 cores positive, 10 cores Gleason 7, 2 cores Gleason 8 70% tumor
2/06/09 cat +bone scans clean ..
3/26/09 RRP surgery Post op path .. upgraded to Gleason 9 (5+4), seminal vesicles involved, several positive margins, 2 of 9 lymph nodes positive
8/22/11 bone mets confirmed