Utility of Emerging Novel Criteria “Cancer Ratio” and “Cancer Ratio Plus” in Differentiating Malignant from Nonmalignant Pleural Effusions

Cyfra 21-1, as well as protein microarray technologies.However, these techniques have been limited and remain underutilized due to a lack of data on diagnostic efficacy, technical requirements, high cost, and poor availability in resource-limited settings. [8][9][10] During the evaluation of lymphocytic predominant exudative effusion, it has been observed that the levels of LDH in serum, pfADA, and differential lymphocyte count change inversely in MPE and TPE.Specifically, regarding MPE, the serum LDH is high, while the pfADA and lymphocyte count are relatively low.On the other hand, for TPE, the serum LDH is relatively low, while the pfADA and 1-