FABP5 and metastatic malignant neoplasm in the lymph nodes: FABP5 expression significantly correlated with UICC stage (OR = 2.331, 95% CI = 1.637, 3.319, p < 0.001, I2 = 14.9%) (Figure 2B), tumor size (OR = 1.515, 95% CI = 1.056, 2.174, p = 0.024, I2 = 36.2%) (Figure 2C), tumor number (OR = 2.114, 95% CI = 1.185, 3.774, p = 0.011, I2 = 0.0%) (Figure 2D), vascular invasion (OR = 2.590, 95% CI = 1.729, 3.881, p < 0.001, I2 = 15.8%) (Figure 2E), and lymph node metastasis (OR = 2.518, 95% CI = 1.626, 3.900, p < 0.001, I2 = 41.0%) (Figure 2F).