I am 55 years old and have been having follow up mammograms for clusters of microcalcifications. A year ago I developed itching of the nipple along with a green discharge. An ultrasound of the nipple was said to be normal. I am now experiencing pain in that breast that radiates under my arm with some swelling in the arm pit and pain in the side of my ribs. I have implants and my doctor thinks there is a possibility of it leaking as my blood work came back normal. Could this be a leaky implant or a cancer?