This is one of the reasons a CCC is soo important. I've mentioned it before and I know people say radiation is radiation, and admittedly there some cancers that are very resistant however I firmly believe the rads dr. Does matter. its all about skill - experience and mathematics. Knowing what to hit, where to paint - and predict potential spread. Hopefully you mom will beat the odds.... Hugs and blessings to you . I do know how you feel - I've been there and it's very hard.