Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , pulmonary findings remain essentially unchanged , with atelectasis along the left lower lung . There is no definite pleural effusion or pneumothorax . There is , however , an area of lucency above the right upper quadrant outlining the contour of the right hemidiaphragm which is concerning for free intra-abdominal air . There is a remote possibility that this may alternatively represent large bowel . Sternal wires are intact .
    OUTPUT:
    
1 . Increased lucency above the right upper quadrant concerning for free intraperitoneal air . Correlation with patient 's clinical status is recommended , and if necessary , further evaluation is recommended with CT . 2 . Unchanged pulmonary findings with left lower lung atelectasis and no definite pleural effusion . These findings were discussed with ___ by Dr . ___ ___ telephone on ___ at 11 :00 AM , time of discovery .