Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest redemonstrate opacification of the left hemithorax , unchanged in appearance since the prior exam with air bronchograms and air-filled cystic structure adjacent to the left axilla . The right lung is grossly clear . Clips are seen within the right axillary region and right upper quadrant . No focal consolidation , right pleural effusion or pulmonary edema is identified .
    OUTPUT:
    
Unchanged opacification of the left hemithorax with leftward shift of mediastinal structures . Right lung is grossly clear .