Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pleural effusion is moderate with locules of gas projecting over the right lateral hemithorax which may be in the pleural space as seen on prior chest CT and or areas of parenchymal abscess . No definite left pleural effusion . Bilateral lower lobe parenchymal opacities are significantly worse from the prior exam . Cardiologic silhouette can not be assessed . Aortic knob calcifications are mild . Biliary stents are incompletely imaged .
    OUTPUT:
    
1 . Bilateral lower lobe pneumonia and atelectasis . 2 . Moderate right pleural effusion . 3 . Locules of air projecting over the right lower lateral hemithorax .