Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Mild enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Again demonstrated is linear atelectasis or scarring within the right middle lobe . Small right pleural effusion is not changed in the interval . No focal consolidation or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
No substantial interval change from the prior study with similar appearing small right pleural effusion and right middle lobe linear atelectasis or scarring .