Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Small to moderate bilateral pleural effusions are unchanged since yesterday . Left retrocardiac opacity likely reflects atelectasis . There is no new worrisome pulmonary opacity . Mild cardiomegaly is unchanged . As before the main pulmonary artery is enlarged . There is no pneumothorax .
    OUTPUT:
    
1 . Stable small to moderate bilateral pleural effusions . 2 . Stable mild cardiomegaly and pulmonary artery enlargement .