Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable views of the chest were obtained . The lungs remain hyperinflated and there is bibasilar atelectasis / scarring . Relative lucency in the upper lobe suggests pulmonary emphysema . The known large hiatal hernia is again seen with air - fluid level appreciated . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
No acute cardiopulmonary process . Pulmonary emphysema and bibasilar atelectasis / scarring . Large hiatal hernia .