Tissue remaining after double mastectomy

pesky904

Just wondering if anyone can tell me about issues with remaining breast tissue after a mastectomy. My understanding is that the surgeon tries to take everything but a tiny bit of breast tissue will still remain.

How much should theoretically be left behind? In my non-cancer side, my reconstructed breast feels great, like all that's in there is muscle, implant and then skin. There doesn't even feel like there's anything left in there that could turn into a lump.

On my cancer side, it's lumpy as all heck - a lump right where my original cancer was and lumps in the lower corner of my armpit. My question is, if the mastectomy took almost every bit of breast tissue, where are all these lumps coming from? And what are they made out of? I can see having a little scar tissue near the actual mastectomy scar, but I don't have any problems there at all. There shouldn't be any fat or breast tissue in most of the breast and what little there is should be negligible, right? So if all there is in the breast is an implant placed over muscle, what the heck are the lumps formed from?