Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post prior median sternotomy and TAVR . The size the cardiac silhouette is enlarged . Hilar prominence may reflect enlarged pulmonary arteries . Bilateral mid lung zone opacities are present likely reflecting atelectasis . No pleural effusion or pneumothorax identified .
    OUTPUT:
    
Enlarged cardiac silhouette . Bilateral mid lung zone opacities are likely reflective of atelectasis .