Molecular Breast Imaging (MBI) in Patients With Suspected Ductal Carcinoma in Situ (DCIS)

Patients who are suspected to have DCIS based on mammographic findings will be invited to participate in this study. The investigators plan to recruit 200 patients who are scheduled to undergo a breast biopsy for a breast lesion considered suggestive or highly suggestive of DCIS as determined by a radiologist specializing in breast imaging. Each patient will have a suspicious area of calcification on mammography of extent \< 3 cm, or a non-focal area of abnormality on ultrasound or MRI that is scheduled for evaluation by biopsy. Each patient will undergo an MBI study immediately prior to biopsy. The study coordinator will approach these patients and inform them of the research project. If they are interested in participating, informed consent will be obtained and the patient will be scheduled for the MBI study prior to the breast biopsy.