Time101,
I'm curious, have you had a PSA test since you started Lupron?
If your PSA level is reducing, you may do very well to take some time before you make any decisions that you are not 100% comfortable with.
Unless I am missing something with your history, Your 4 month Lupron shot should be reducing the size of the what appears to be a relatively low tumor load.
Perhaps you could ask for an endorectal coil MRI which would show the current state of your prostate and you could have another one done in a couple of months to see if the tumor shrunk.
Knowing if the tumor shrunk, might make your treatment decision easier. If it shrinks you may be more comfortable with less radiation and that could be a wise choice due to potential side effects both short and long term
Whatever you do... make sure that your choice is something you are 100% confident in.
Very best of wishes to you in what ever treatment you decide on.
Edited for serious typo's.
Post Edited (MsWorryWart) : 5/13/2013 10:10:05 AM (GMT-6)