I'm 52, DX 4.6 years ago with denovo MBC and have been stable for 4 of those years. My treatment has made me gain weight so my already large breasts are becoming enormous. Is this kind of surgery risky? I've had numerous other surgeries since Dx (partial thyroidectomy, rod in femur, and De Quervain wrist) and haven't had any issues, but I'm not finding much research on this topic. Thanks