Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is near complete opacification of the left lung , progressed since the prior study , compatible with worsening accumulation of pleural fluid collapsing the entire right lung . . Patchy opacity at the right lung base could represent developing infection versus aspiration . The cardiomediastinal silhouette can not be well assessed due to the large pleural effusion . No large pneumothorax is present .
    OUTPUT:
    
Interval worsening of the left large hydrothorax causing near complete collapse of the left lung . Worsening or new right lower lobe pneumonia or atelectasis . Small residual right pleural effusion .