Then, we set the IFN-γ concentration cut-off at 100 pg/mL and analyzed it, and found that stage III was significantly increased (p < 0.001) and axillary lymph node metastasis positivity was increased (p = 0.035) under 100 pg/mL, and IFN-γ concentration decreased with an increasing N stage (p = 0. This evidence concerns the gene IFNG and metastatic malignant neoplasm in the lymph nodes.