Question: We have a patient with a history of breast malignancy scheduled to receive a screening mammogram. Should the order be sent back to have the radiologist perform a diagnostic mammogram instead? Colorado Subscriber Answer: Patients with a history of malignancy are not required to receive diagnostic mammograms following complete eradication of the malignancy. The American College of Radiology (ACR) further explains that no such guidelines exist in their Breast Imaging Frequently Answered Questions (FAQ) section: