Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and tubes are similar to the prior film . Compared to the prior film , diffuse bilateral interstitial and alveolar opacities are new or much more pronounced , slightly more pronounced on the right . The right minor fissure is slightly thickened and slightly retracted . There is increased retrocardiac density , with interval obscuration of the medial left hemidiaphragm . No gross effusions .
    OUTPUT:
    
1 . Increased interstitial and alveolar infiltrates seen diffusely throughout both lungs . The most likely differential is CHF . Infection or ARDS might also account for this appearance , but CHF is more likely to develop this rapidly . 2 . Left lower lobe collapse and / or consolidation