Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal cardiomediastinal silhouette . The lungs are hyperexpanded , with mild flattening of the diaphragmatic contours , suggestive of emphysema . Biapical scarring is present . There is no pneumothorax , vascular congestion , consolidation , or pleural effusion . Osseous structures appear diffusely demineralized .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Pulmonary hyperexpansion consistent with emphysema . 3 . Diffuse osseous demineralization .