Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were provided . Again seen is a large paramediastinal opacity , similar to the previous exam . A right pleural effusion is again noted . Increased right basilar opacity may represent increasing effusion or pneumonia . The left lung is relatively clear with pleural plaques , unchanged since the previous exam . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Increasing right basilar opacity which may represent increasing pleural fluid , pneumonia or a combination of both .