Hi @@dada
A bit more to add.. before I went on leave from my position at work (nurse) I downloaded the protocol for radiation of early breast cancer at the hospital am treated at, what is considered the forefront for radiation in QLD (got the newest technology earliest etc, not that it matters but I imagine their protocol is used widely throughout QLD as standard of care..)
I just re read it thinking it might help you.. it says international guidelines recommend radiation post mastectomy for high risk features - these include younger age, multi focal disease and size. I think that might answer why rads is being recommended :)
Happy Easter weekend considering everything !!