Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are slightly better aerated . There is persistent , mild to moderate central pulmonary vascular congestion and pulmonary edema . Small bilateral pleural effusions are largely unchanged . Left retrocardiac atelectasis is again noted . There is no pneumothorax . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
Mild improved aeration with persistent mild to moderate pulmonary edema and small bilateral pleural effusions .