Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semiupright frontal radiograph of the chest . The tracheostomy tube is in expected position . Lung volumes are low with bibasilar atelectasis and likely small pleural effusions . No pneumothorax . Mild enlargement of the cardiac silhouette . The upper abdomen demonstrates gastrostomy tube in the left upper quadrant . Air is seen outlining loops of bowel on the right upper quadrant consistent with free air . Additionally pneumatosis is noted in several loops of bowel in the right upper quadrant . All of these findings were seen on outside hospital CT .
    OUTPUT:
    
Free air and pneumatosis in the upper abdomen as confirmed by outside hospital CT . Per surgical admission note , the Surgical service is aware of these findings