noticed a lump on my shin. Got a biopsy and was diagnosed with b cell mantle. Took 4 rounds of chmo until my white blood cells got to low. Had a scan and found the chemo did nothing. Lump has almost tripled in size. Started radiation. Am now done 12 out of 20 sessions and the pain of all the sores from burning is almost unbearable. Is it worth keeping up with the rest of the radiation as no noticable difference?