Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large gastric air bubble seen in the left upper quadrant . This could be decompressed with an NG tube . The left chest tube is in unchanged position . The cardiomediastinal silhouettes are unchanged in appearance . There is again seen unchanged right basilar atelectasis . There is no change in the appearance of the lungs . There is no pneumothorax . There are no effusions .
    OUTPUT:
    
Large gaseous distention of stomach which may benefit from NGT decompression . No evidence of pneumo - or hemothorax . Otherwise unchanged chest x-ray .