Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to ___ chest radiograph , both lungs are well expanded and clear with resolution of the retrocardiac atelectasis . Near resolution of the small right pleural effusion . The cardiomediastinal silhouette , hila , and pleural surfaces are normal . The Left perihilar opacity and sutures are consistent with normal postsurgical changes .
    OUTPUT:
    
1 . Improved expansion of both lungs . 2 . Near resolution of the small right pleural effusion . 3 . Resolution of the retrocardiac atelectasis .