I had a breast reduction in July of 2009. After much of the healing process I realized I have a large part of the right breast that is a very hard lump. I can actually grip this entire area, it starts to the right side of the nipple. I had an ultra-sound and it came back as a large cyst and that I should repeat an ultra-sound in 4-6 months to see if it has grown. My surgeon doesn't believe that it's anything to worry about. My primary doctor said it felt like it could be cancerous and I should have a mammogram. Truthfully, at this point, I am fearful of a mammogram. It was very painful when I was large, but now, between the thick scarring underneath and this large lump, I can't imagine how much it would hurt now. Also, I'm thinking that the steel plates pressing so hard could actually break open whatever this lump it... I did hear the term probable fat necrosis spoken by my surgeon-- do you feel an MRI would be helpful? What about a biopsy? Do I even need to worry? And is this something that I will have to live with for the rest of my life? If the surgeon actually removed this, my right breast would be smaller. Thank you for your prompt response.