Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , and a left retrocardiac opacity is improved from the recent radiograph and likely reflects atelectasis . Minimal linear atelectasis is also demonstrated at the right lung base . There are small pleural effusions . No definite focal consolidation or pneumothorax is seen . The heart is normal in size given low lung volumes .
    OUTPUT:
    
Bilateral small pleural effusions and improved aeration of the left retrocardiac atelectasis . No new or progressive consolidation to suggest pneumonia .