Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . The lungs remain hyperinflated with chronic changes of chronic obstructive pulmonary disease . No definite focal consolidation is seen . There is no large pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable . Likely mitral annulus calcification is noted .
    OUTPUT:
    
No acute cardiopulmonary process .