Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is no significant change . There are postsurgical changes of left hemithorax with chain sutures , similar to prior . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unchanged .
    OUTPUT:
    
Stable postsurgical changes of the left hemithorax . No acute cardiopulmonary process .