Clinical Significance of Past History of Breast Cancer Screening for the Prognosis of Triple Negative Breast Cancer.

BACKGROUND/AIM This study examined the prognostic impact of the past history of breast cancer screening within the last 2 years (PH-BCS), for patients with triple negative breast cancer (TNBC), a subtype that carries extremely poor prognosis. PATIENTS AND METHODS Eighty-six consecutive cases with TNBC, who underwent surgery at our faculty from 2009 to 2015, were divided into two groups according to PH-BCS. Prognostic analyses for disease-free survival and overall survival between the two groups were performed. RESULTS The positive PH-BCS group (n=44) had a significantly better prognoses than the negative PH-BCS group (n=42) (p<0.001). No recurrent cases were observed in the positive PH-BCS group. In the negative PH-BCS group, tumor and node status and chemotherapy were indicated as significant prognostic factors, and further step-wise multivariate analysis revealed only node status as a significant prognostic factor. CONCLUSION Breast cancer screening at least every 2 years may improve the prognosis of TNBC.