Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged but stable in size . The aorta is tortuous and calcified . Bibasilar opacities are present as well as small bilateral pleural effusions . Of note , the bibasilar opacities are less significant when compared to the prior study in ___ . No pneumothorax is identified .
    OUTPUT:
    
Bilateral lower lobe opacities are seen , decreased in extent from the prior examination and could represent atelectasis or persistent infection . Bilateral small pleural effusions are noted .