Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal lung volumes despite clear bullae at least in the lung apices . There is no focal consolidation or pleural abnormality . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Remote bilateral rib fractures are seen .
    OUTPUT:
    
No pneumonia . Emphysema .