Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , inspiratory volumes are improved . Heart size at the upper limits of normal , but unchanged . No CHF . Again seen is platelike opacity at both lung bases , more pronounced on the right . Compared to ___ , the right base opacity is slightly larger . The lungs are otherwise grossly clear , without focal infiltrate or consolidation . Possible minimal blunting of the costophrenic angles , but no gross effusion .
    OUTPUT:
    
Patchy opacities at both lung bases , right - greater - than - left , more pronounced than on ___ . The appearance is most suggestive of bibasilar atelectasis . Superimposed infection , particularly on the right , is considered less likely , but would be difficult to exclude in the appropriate clinical setting .