Hi @au0rei, my tumours (invasive lobular and ductal) were hormone + and HER2+ and had one lymph node that was positive. I had a mastectomy as the largest lobular tumour was around 9cm. I had chemo & Herceptin and due to the size of the largest tumor and its location (close to the chest wall) was strongly advised to also have radiation. I had 25 sessions of radiation. In my case I guess it was pretty clear cut that I should have that treatment too, although it was still offered as a choice. Although my skin did react quite badly towards the end, I do feel that at least I've done everything I can to reduce the risk of recurrence, although as we know there are no guarantees. Best of luck with whatever you choose, it does sound as though there is a smaller benefit for you and that makes it trickier to decide xx