Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded and there is flattening of the hemidiaphragms , not significantly changed compared to ___ . No focal consolidation concerning for pneumonia . Heart size is normal . The mediastinal contours are normal . There are no definite pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
1 . No acute cardiac or pulmonary process . 2 . Findings consistent with emphysema .