Women aged 18 years and above presenting for a diagnostic ultrasound secondary to a palpable mass, abnormal mammogram, follow-up ultrasound abnormality, or discharge were asked to participate in the study. If the patient had both a palpable mass and a mammogram that had an abnormality the indication was listed as a palpable abnormality. Exclusion criteria included inability to give informed consent and abnormality of the breast that is larger than one quadrant. No patients were excluded from the study.