Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate the expected post - pneumonectomy changes , including total opacification of the left hemithorax with leftward shift of the mediastinum . The right lung is clear without consolidation , effusion , or pneumothorax .
    OUTPUT:
    
Status post left pneumonectomy with expected postsurgical changes . The right lung appears normal .