Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . Mediastinal and hilar contours are stable . Lungs remain hyperinflated with moderate emphysematous changes again noted primarily in the upper lobes . No pulmonary edema is present . Linear opacities in the lung bases are compatible with areas of subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Moderate emphysema .