This clinical trial studies contrast enhanced spectral mammography (CESM) for the evaluation of pathologic nipple discharge. CESM is similar to standard mammography, but it includes an intravenous (by vein) injection of an iodine-based contrast, which makes tissue and blood vessels more visible in scans. The goal of this trial is to learn if CESM, is better than standard mammography in quickly and efficiently determining the cause of nipple discharge and detecting breast cancer, if present. CESM may increase the chance of finding breast cancers and lower the risk of having unnecessary biopsies.