Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate - to - severe cardiomegaly is similar to prior . Alveolar infiltrates at the lung bases are stable across multiple prior exams . Bilateral small to moderate pleural effusions are similar to prior . No pneumothorax . NG tube terminates below the diaphragm .
    OUTPUT:
    
Stable bibasilar alveolar opacities . Bilateral small to moderate pleural effusions .