CD68 and metastatic malignant neoplasm in the lymph nodes: Especially, a high CD68+ TAMs density had a significant association with lymph node metastasis in TI (OR = 2.10, 95% CI: 1.19–3.71, P=0.01; I2 = 0) or TS (OR = 1.58, 95% CI: 1.00–2.51, P=0.05; I2 = 0).