Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette appears mildly enlarged , not significantly changed since prior examination . Lung volumes remain low , accentuating the bronchovascular structures . However , as compared to prior examination , pulmonary vasculature appears slightly more prominent . Mild bibasilar atelectasis is present . No focal consolidation concerning for pneumonia is identified . Tiny bilateral pleural effusions could be present if any .
    OUTPUT:
    
Low lung volumes . Increased prominence of the pulmonary vasculature , suggestive of mild pulmonary vascular congestion .