Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG , and aortic valve replacement . Heart size is difficult to assess given the presence of a moderate to large right pleural effusion , and a small left pleural effusion . There appears to be an ovoid opacity projecting over the left inferior hemithorax which likely reflects a loculated component of the left - sided pleural effusion , but a pleural based mass is not excluded . Bibasilar airspace opacities right worse than left likely reflect compressive atelectasis though infection or aspiration is not excluded . Mild pulmonary vascular congestion appears to be asymmetric in primarily noted in the right lung . There is no pneumothorax . No acute osseous abnormality is seen . The aortic knob is calcified .
    OUTPUT:
    
1 . Moderate to large right and small left pleural effusions with bibasilar airspace opacities likely reflective of compressive atelectasis though aspiration or infection can not be excluded . A component of the left pleural effusion is likely laterally loculated , but a pleural based mass can not be excluded . 2 . Mild pulmonary vascular congestion .