Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . The heart size is within normal limits . No typical configurational abnormality is identified . Thoracic aorta mildly widened and elongated but without evidence of local contour abnormalities or advanced wall calcifications . There is moderate elevation of the left diaphragm , possibly related to moderate gas - distended stomach with fluid level . There is some adjacent moderately gas - distended small and large bowel , but the entire abdomen can not be evaluated . There is no evidence of free air accumulating under the diaphragmatic contours , suggestive of free peritoneal area . Also , the lateral view does not demonstrate any air under the diaphragmatic contours . The next preceding chest examination in our records is dated ___ . The patient was at that time status post motor vehicle accident and encountered at least two left - sided rib fractures . Noteworthy is that the moderate left - sided diaphragmatic elevation existed already at that time .
    OUTPUT:
    
No evidence of free abdominal air on upright chest examination .