Patient’s chest X-ray findings showed central perihilar infiltrate (7.59 fold), patchy infiltrate (9.98 fold), consolidation (5.73 fold), hilar lymphadenopathy (6.62 fold), pneumothorax (5.28 fold), pleural effusion (6.54 fold) showed higher expression of IL-2 mRNA expression compared to those patients did not show any such findings in X-ray (4.61 fold), and differences among them were found to be statistically significant (p< 0.0001). The gene discussed is IL2; the disease is Pleural effusion.