Clinical and pathologic risk factors of tumor recurrence in patients with node-negative early breast cancer after mastectomy.

Background And Objectives: Patients with node-negative breast cancer (NNBC) usually have a good prognosis, but tumor recurrence still compromises survival. In this study, we sought to identify clinical and pathologic factors that predict recurrence.

Methods: A total of 716 patients who were proved with pT1-2N0M0 breast cancer between 2005 and 2009 were enrolled in this study.