Patients undergo a clinical breast examination and a diagnostic mammogram with or without targeted breast ultrasound to the index cancer as part of their standard of care preoperative work-up. As part of the research study, patients receive contrast agent intravenously (IV) and then undergo a CESM with digital breast tomosynthesis (DBT) over 30 minutes. Patients also receive a contrast agent, gadolinium, IV and undergo bilateral breast contrast enhanced (CE)-MRI over 10 minutes.