Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest again demonstrate median sternotomy wires and surgical clips . There has been interval improvement in the right basilar pleural effusion and atelectasis with continued small to moderate left pleural effusion . The remainder of the lung parenchyma is clear with no focal consolidation . The cardiac silhouette is enlarged but stable since the prior radiographs . Aortic valve replacement is again seen . Kyphosis of the thoracic spine is noted and unchanged since prior radiographs .
    OUTPUT:
    
Interval improvement of right basilar opacity . Persistent bilateral pleural effusions with adjacent atelectasis .