Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are low in volume and show a faint right lower lobe opacity . The cardiac silhouette is top normal . The mediastinal silhouette and hilar contours are normal . No pleural effusion or pneumothorax is present .
    OUTPUT:
    
Faint right lower lobe opacity likely represents atelectasis but sequalae of aspiration can not be excluded . No subcutaneous gas .