Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph demonstrates hyperinflation and flattening of the diaphragms , suggestive of emphysema . Lungs are otherwise clear and there is no pleural effusion or pneumothorax . Aside from aortic tortuosity , the cardiomediastinal silhouette is normal . Subtle radiodensity above the level of manubrium may represent junctional line as seen on CTA - Chest . Prior vertebroplasty is noted in the lower thoracic vertebra .
    OUTPUT:
    
No acute cardiopulmonary process . Please correlate with results of CTA - Chest from ___ .