Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is enlarged . The lungs are hyperinflated . A large hiatal hernia with an air - fluid level is again seen . No definite focal consolidation is identified . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute intrathoracic abnormality . Large hiatal hernia .