 This study is a feasibility study to determine if a combined breast PETCT scanner can image malignant functional activity while determining anatomical structure in the same clinical setting for patients with breast cancer. End-points of this study are whether women will accept the imaging position and timing, and whether functional properties of breast cancer can be imaged with this device. The secondary purpose of this study is to explore protocol parameters with a view to optimizing imaging performance whilst minimizing patient discomfort. Imaging results will be compared to histological samples to determine ground truth. 