MKI67 and metastatic malignant neoplasm in the lymph nodes: Results of univariate analysis of disease‐free survival using Cox (Table 2), Ki‐67 LI, pT, PR status, lymph node metastasis, TACC2 status, adjuvant endocrine therapy, and chemotherapy were demonstrated to be significant prognostic factors for disease‐free survival and histological grade was detected as the borderline significance.