Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of NG tube , the tip of which extends into the distal gastric antrum or proximal small bowel . The remainder of the exam is essentially unchanged from the prior examination . Redemonstrated are decreased lung volumes bilaterally , and large bilateral pleural effusions with adjacent atelectasis . Stable cardiomegaly is noted . There is an opacity once again identified overlying the right proximal clavicle , unchanged and appearance from prior examinations . Incidentally noted is a large gallstone in the right upper quadrant .
    OUTPUT:
    
Interval placement of a nasogastric tube , the tip of which extends into the small bowel . Additional cardiopulmonary findings are stable , as described above .