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 appears mildly enlarged . Pulmonary vasculature is normal . Lung volumes are slightly low , with minimal left basilar atelectasis . No focal consolidation , left pleural effusion or pneumothorax is clearly evident . There may be minimal pleural thickening or trace fluid at the right costophrenic angle . No acute osseous abnormality is detected .
    OUTPUT:
    
Minimal pleural thickening versus trace effusion on the right . Low lung volumes with left basilar atelectasis . No evidence of congestive heart failure .