I declined radiation but it was very site-specific and would not have affected distant recurrence rate or even risk of recurrence in other breast or another area of the same breast. The lumpecfomy was in my left breast and I was concerned about any possible radiation damage to my heart.

I don't know what hyperplasia cells are so can't shed any light on the effect of radiation on them. Don't hesitate though to ask your oncologist or cancer team to explain anything that seems confusing as that's the only way you can have confidence in whatever decisions you ultimately make. I wasn't opposed to radiation per se, just felt that it didn't decrease any risks I was worried about.