| Inclusion Criteria: | 1) Newly diagnosed female breast cancer patients who are at least 18 years of age.
2) Breast cancer histology consistent with at least one of the following American Joint Committee on Cancer (AJCC) defined types: - Carcinoma, NOS (not otherwise specificed) - Ductal (intraductal (in situ), Invasive with predominant intraductal component, Invasive, NOS, Comedo, Inflammatory, Medllary, Mucinous (colloid), Papillary, Scirrhous, Tubular, Other) - Lobular (in situ, Invasive with predominent in situ component, invasive) - Nipple (Paget's disease, NOS, Paget's disease with intraductal carcinoma, Paget's disease with invasive carcinoma) - Other (undifferentiated carcinoma)
3) Patients receiving other or all primary breast cancer treatment (e.g., cancer-directed surgery, chemotherapy or hormonal therapy ) in the NCCN institution on or after July 1, 1997.
4) Patients with a previous history of breast cancer without any distant metastases if they meet the previous criteria.
5) Patients with a history of any other type of cancer but without a history of distant metastases or evidence of relapse if they meet the previous criteria. |