Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . There is no pneumothorax or large pleural effusion . There lung volumes are slightly low with mild bibasilar atelectasis , but there is no focal consolidation concerning for pneumonia . Pulmonary vasculature is within normal limits . Left subclavian and NG tubes are in standard positions . ETT appears slightly low , but the chin is down .
    OUTPUT:
    
No significant change in heart and lungs or support devices since the most recent prior study .