Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . Compared with the prior examination there has been interval resolution of multiple left lung opacities and significant improvement of right lower lobe opacities . However there is a residual small opacity overlying the right hemidiaphragm . No new opacities are identified . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Significant interval improvement compared with ___ , with resolution of most bilateral opacities . Residual small opacity overlying the right hemidiaphragm may represent resolving infection / inflammation although new pneumonia can not be excluded . Correlate clinically .