AR and metastatic malignant neoplasm in the lymph nodes: Within the 189 cases, AR- cases were positively correlated with higher T stage (86.1 vs. 40.5%, P < 0.001, chi-square test), lymph node metastasis rate (69.4 vs. 24.2%, P < 0.001, chi-square test), and distant metastasis rate (63.9 vs. 19.6%, P < 0.001, chi-square test) than AR+ cases.