- Prior history of any malignancy treated without curative intent, or treated with curative intent within the past 5 years. Prior history of DCIS > 5 years before current breast cancer diagnosis is acceptable if ipsilateral (and no radiotherapy given) or contralateral (with or without radiotherapy) or contralateral (with or without radiotherapy). Prior history of contralateral stage 1 breast cancer > 5 years prior to the current breast cancer diagnosis is acceptable, however prior ER/PR+ breast cancer > stage 1 at any time is not allowed.