Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours appear similar , with prominence of the right hilum re - demonstrated . No pulmonary edema is present . Streaky opacity in the right lung base may reflect atelectasis . No pleural effusion , pneumothorax , or focal consolidation is demonstrated . No acute osseous abnormality is detected .
    OUTPUT:
    
Streaky opacity in the right lung base , likely atelectasis . No pulmonary edema .