i believe that the doctor told my mother that for some people, surgery (if its operable) can remove the tumor and that can be it. no need for other treatments, just check ups.. other times of course, like my moms... it came back after the surgery and now she is on Gleevac, which is basically chemo in a pill.
i do think that some people do have permenant remission from the pill or surgery or both. i can look into that more to see if i am remembering this correctly. but if you are diagnosed with it, it isnt liek there arent options, even though it is a rare cancer.
I hope that answers your question.