I had an identified tumor on one of the tabs on my spine (T3 maybe?) -- after some discussions Colin Hill at NYU Langone decided to give me 3 low doses of radiation rather than one more concentrated dose over time (I think it was 3 weeks). This was over a year ago now and seems to have worked out extremely well -- I did not have any side affects (very slight soreness which some aloe cream they gave me solved) and (so far!) no there has been no recurrence