Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show a right lower lobe opacity with an associated moderate effusion . The cardiac silhouette is normal . The mediastinal silhouette and hilar contour show fullness consistent with extensive lymphadenopathy . No pneumothorax is present .
    OUTPUT:
    
Right lower lobe opacity with an associated effusion , likely represents a moderate effusion with associated atelectasis ; however , superinfection can not be excluded . Mediastinal and hilar lymphadenopathy better seen on recent PET - CT .