Topical Calcipotriene Treatment for Breast Cancer Immunoprevention

The investigators are doing this research study to find out how topical calcipotriene ointment affect people who have breast cancer, and what impact that may have on those who are at risk of developing breast cancer in the future. The investigators hope that what they learn will lead to the development of a new medication for the treatment and prevention of breast cancer. Abnormal breast lesions can be benign, premalignant or malignant. These lesions are being targeted by the topical calcipotriene ointment. The investigators aim to determine whether this topical treatment can stimulate the immune cells against the breast lesion in ways that would prevent its recurrence after surgical removal. Calcipotriene ointment is approved by the U.S. Food and Drug Administration (FDA) to treat psoriasis, but calcipotriene ointment is not approved by the FDA to treat breast cancer.