I am trying to understand, after a core biopsy of 5 samples, on a .6 mm lesion, found 1 month and a half after a normal mammogram… Then an ultrasound states, low colour flow. Then the results come back as small yellow/white fatty/tissue, yet my doctor feels there could be cancer cells in this lesion. I get very nervous as this lump that is near my right nipple can suddenly appear? After I had a negative mammogram, how does something appear so suddenly??? Now even tho my one cancer Dr tells me it’s remote that this is cancer, another one says they are concerned there are cancer cells there, and I am naturally concerned. My one Dr told me not to worry. I will have a breast MRI on May 12th and then follow up with my Dr. a week later. I am going to worry, this seems unusual to me. My Dr said, if it is still palpable they will remove it. I have markers in there to keep a measure on this lump. Has anyone else experienced something like this?