IL6 and neoplasm: Our findings revealed no significant correlation between serum IL-6 levels and CEA (r = 0.1722, p=0.0405), additionally between IL-6 and CA50 (r = 0.1984), CA199 (r = 0.1560), and CA724 (r = 0.0695) (Figure 3(b), p > 0.05), suggesting that IL-6 and tumor markers are independent detection indices.