Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . The lungs remain relatively hyperinflated with flattening of the diaphragms . The patient is status post median sternotomy and CABG . Left base atelectasis / scarring is seen . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
No acute cardiopulmonary process . Again seen hyperinflated lungs , may be due to COPD .