Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is normal . Moderate hiatal hernia is again noted . The lungs are hyperinflated . Patient has known emphysema . Small lung nodules , and lingular atelectasis are better seen in prior CT . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute cardiopulmonary abnormality