Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky opacities at the left lung base are unchanged from prior studies , compatible with scarring . Minimal linear opacification at the right lung base adjacent to but not obscuring the right heart border likely reflects atelectasis . No focal consolidation concerning for pneumonia is identified . There is no pleural effusion or pneumothorax . Pulmonary vasculature is not engorged . The cardiac silhouette is mildly enlarged but stable . The mediastinal and hilar contours are within normal limits . The trachea is midline . The visualized upper abdomen is unremarkable . S - shaped thoracolumbar scoliosis is again noted .
    OUTPUT:
    
Unchanged left basilar scarring ; new right basilar linear opacities , most compatible with atelectasis .