Hi Annie
I was diagnosed Stage 4, with two large breast tumours and mets to hip bone and femur. Breast tumours had different pathologies but they decided to treat all as ER/PR+ on a clinical trial. On the clinical trial the breast tumour that was not ER/PR+ was monitored closely and as soon as it started to slightly increase in size they took me of the trial and I had an immediate mastectomy (without reconstruction due to the likelihood of recurrence as well). I was relieved to have the breast tumours removed because of the different pathologies. Just meant I had one less thing to worry about. Also, the debate about whether a mastectomy at Stage 4 improves longevity is still widely contested. So, If I was you I would have the mastectomy if advised - anything that may help is worth it in my view. Good luck with your decision. Lisa xx