Clinical and Pathologic Characteristics of Patients With <i>BRCA</i>-Positive and <i>BRCA</i>-Negative Breast Cancer

These results suggest that tumors associated with BRCA1 mutations may be divided into two distinct groups, triple-negative and non-triple-negative groups. Future studies should seek to determine whether patients with BRCA1 mutations and triple-negative breast cancer respond to treatment better than BRCA-negative patients with similar tumor pathology.