Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is not engorged . Minimal ill - defined opacities are noted within the right lung base , and an infectious process can not be completely excluded . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Subtle minimal ill - defined opacity within the right lung base may reflect an area of developing infection . No evidence for pulmonary edema .