Statement: Patients must have ductal carcinoma, that can be felt by touch to be eligible for the primary trial.
Primary_evidence: Inclusion Criteria:   Age greater than or equal to 18 years   Histologic diagnosis of palpable invasive breast cancer or ductal carcinoma in situ   Patient desire to undergo breast surgery   Ability to voluntarily provide informed consent to participate prior to any study-related assessments/procedures being conducted   The cancer enhances on breast MRI imaging. Exclusion Criteria:   Absolute contraindication to MRI, including presence of implanted electrical device (pacemaker or neurostimulator), aneurysm clip, or metallic foreign body in or near eyes   Severe claustrophobia   Contraindication to use of gadolinium-based intravenous contrast, including life-threatening allergy or compromised renal function (creatinine > 2.0)   History of median sternotomy   Pregnancy. Patient attestation that they are not pregnant will be acceptable as per standard policy for MRIs at DHMC.