Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval improvement in elevation of the right hemidiaphragm . The cardiomediastinal silhouette is enlarged which could represent cardiomegaly or pericardial effusion ; however it is not significantly changed from prior . No focal consolidation is present . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Interval improvement in elevation of the right hemidiaphragm .