Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bibasilar opacities are present , left greater than right . The cardiac silhouette has increased since prior study . Small bilateral pleural effusions have accumulated in the interim . Visualized upper abdomen is unremarkable . Osseous structures are grossly intact . Median sternotomy wires and surgical clips are noted projecting over the mediastinum .
    OUTPUT:
    
1 . Bibasilar opacities , left greater than right , which could reflect atelectasis versus pneumonia . 2 . Small bilateral pleural effusions with mild cardiomegaly .