Ten years ago my husband was in a similar place to yours, mind you no one is exactly the same, but ten years later he is still doing well. Maybe the hormone injection was to help shrink the tumour?
Good luck in getting the results, I know it is a waiting game but in ten years I guess we've become patient and kind of philosophical. The only advice that I would give is take lots of notes, ask for a copy of the letter that goes to your g.p. This forum is wonderful and gives so much support.