For primary MZL of the breast, do you do whole breast to 24 Gy or ISRT?

Without knowledge of the age of this patient and whether the concern of carcinogenicity from half the normal dose of traditional whole breast radiation (which we obviously do all the time for breast cancer) is enough to warrant omission of curative intent therapy in what is otherwise described as a ...

I would do Breast MRI bilaterally. My recent case of MZL breast primary had biopsy proven bilateral diffuse disease not evident on CTs, Mammogram, breast US or PET (low proliferative rate yields minimal SUV uptake). In retrospect, she noted a subtle increase in the size of both breasts over the prec...