CRP and lung carcinoma: With the deepening of people's understanding of tumor-related inflammation, biomarkers of systemic inflammation like C-reactive protein (CRP) level, as well as the ratio of neutrophil/lymphocyte (NLR), lymphocyte-to-monocyte (LMR), and platelet-to-lymphocyte (PLR), have been well-documented to be able to predict the prognosis of neoplastic diseases, including lung carcinoma [16], gastric carcinoma [17], and liver carcinoma [18].