Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is enlarged but is unchanged . No definite pneumothorax . Obscuring of the left hemidiaphragm suggests increased left lower lobe consolidation which may be infectious process or atelectasis . Small left pleural effusion . Right PICC in unchanged position . Bilateral displaced rib fractures again noted .
    OUTPUT:
    
New small left pleural effusion with increased left lower lobe consolidation which may be atelectasis but can not exclude pneumonia .