Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . As compared to prior study , lungs are better aerated . Previously seen right upper lung opacity has cleared . There is persistent right basilar atelectasis . No large pleural effusions seen . Cardiomediastinal and hilar contours are normal . Right hemidiaphragm is elevated , unchanged from prior recent post-operative study . Normal gastric bubble is seen in the left upper quadrant . Nasogastric tube has been removed .
    OUTPUT:
    
No significant gastric distention .