Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated , compatible with the patient 's known emphysema . Greater opacification at the lung bases could be the result of small pleural effusions . There is no pulmonary edema or consolidation . The cardiac size is normal . The descending thoracic aorta is mildly ectatic and contains calcifications . Scoliosis is minimal
    OUTPUT:
    
Severe emphysema . Possible small pleural effusions .