Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Rotated positioning . An ET tube is present , tip 3 .4 cm above the carina . An NG tube is present , tip extending beneath diaphragm , off film . Again seen is focally dense , somewhat patchy , opacity in the right lung base medially , essentially unchanged . Mild patchy opacity at the left lung base is also similar to the prior film . No CHF or gross effusion . Relative lucency interposed between the right base opacity and right hemidiaphragm is again noted . Doubt pneumothorax .
    OUTPUT:
    
Patchy relatively confluent opacities tear right - greater - than - left lung bases , consistent with pneumonic infiltrates . Allowing for differences in positioning , the appearance is similar to 1 day earlier .