New lump in other breast

I can share that I also got a lump  in the "good breast" (2011).  I have been stage IV since 2009 though.  It was cancer.  I chose to have this remaining breast removed which was done this past November.  The pathology was exactly the same as the cancer in the opposite breast.    Oncologist told me there was no way to tell if this new lump was part of my metastatic disease or a new primary.  The  pathology after the mastectomy found an additional 2.9 cm hidden mass that was not seen on PET or mammo. 

A lot of lumps are not cancer, so hang in there until all the tests and biopsies are done.  Best of luck to you.  Take care.  Jean

Hi Mmahle46 - I just want to give you a word of caution. My lastest episode of BC did not show up on PET, ultrasound or mammo! It was palpable so they gave me a biopsy and it was diagnosed then. If, like me, you have dense breast tissue - it may not show up on mammo and ultrasound plus I was told that my form of DCIS was fast moving with lack of calcification (so lack of dead cancer cells which show up nicely on mammo). The PET scan is unlikely to show up DCIS (if that's what it is) as it has not yet become invasive. I would ask your medical team for a biopsy - even with a clean PET. Sorry if this may worry you but I had 4cm of high grade DCIS which was 'invisible' to any scans. My own vigilence meant that I  knew there were changes and I caught this early before it became invasive and thankfully no more chemo on this occasion.

That's a possibility susieq58 - I was told that my new BC might have shown up on MRI. But even if it did - they would need to biopsy to get a firm diagnosis. I know that in the UK, even with clean scans, they have a protocol of doing a biopsy if the lump / area is palpable. Plus my case was strengthened by the fact I had a previous diagnosis. Ultimately, only a biopsy will give the facts.