Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . The cardiac , mediastinal and hilar contours are within normal limits . Lungs are hyperinflated . No focal consolidation , pleural effusion or pneumothorax is present . Moderate degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Hyperinflated lungs compatible with COPD .