The result revealed a significant correlation (P < 0.05) between OS and DFS stratified by all clinical factors (Age, menstrual status, Ki-67, ER and PR expression, vascular tumor thrombus, pathological type, tumor size, chemotherapy, and lymph node metastasis; Figures 6, 7). The gene discussed is ESR1; the disease is metastatic malignant neoplasm in the lymph nodes.