Collecting and Storing Tissue Samples From Women With or Without Breast Cancer

* Breast lesion which is suspected to be cancer or a known diagnosis of breast cancer (any stage, at any point in the disease trajectory) who agrees to donate tissue/body fluids. * Individuals of all races and ethnic groups are eligible for this trial. There is no restriction regarding age, race, or ethnicity. The trial is open to the accrual of men and women. * Must sign informed consent for study of tumor specimens as part of a research project. * Must give permission for their tumor specimens to be obtained from outside institutions for molecular analyses. * Must be willing to be followed for recurrence, relapse and death from disease. ELIGIBILITY CRITERIA FOR OPTIONAL PHYSICAL FUNCTION AND COGNITIVE ASSESSMENTS * Must be 60 years of age or older * Have completed initial round of cancer treatment * Have completed the optional online survey and opted-in for the physical function and cognitive assessments