Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is normal . The mediastinum is not widened . Minimal calcifications are noted within the aortic arch . Linear opacity at the left lung base likely represents atelectasis . No focal lung consolidation is seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of widened mediastinum . No focal lung consolidation .