Hi I found a lump a while ago and went to my gp she told me not to worry due to my age and said it would be hormonal. So I didn’t worry. I found a new lump recently at 29, went to a different gp he said he wasn’t worried about the new one too much, but wanted the original one tested. He referred me to the breast clinic, I saw a specialist that said it feels typically benign, as it was long and smooth. I had noticed my breast had got bigger and turned to the side and nipple looked different. I then had an ultrasound, he said that the new one was fine, but wanted to biopsy the original one. Since the biopsy the long smooth lump seems to have gone and the hard bit is left. There is also a new lump left from where the biopsy was, but I’m aware of that. So is it possible to have a canerous lump inside a cyst or benign lump? 

Thank you