Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph excludes the right costophrenic angle . An NG tube is in place , the tip of which is superimposed upon the expected region of the body of the stomach . Note is made of an intrathoracic stomach fundus , better appreciated on CT performed same day , new since ___ . The lungs are clear . The cardiac silhouette is normal in size , the mediastinal contours are normal .
    OUTPUT:
    
Interval placement of an NG tube , the tip of which is in the expected region of the stomach , with a similar appearance to intrathoracic stomach compared with CT earlier this evening . New transdiaphragmatic herniation of gastric fundus suggests acute exacerbation of chronic left central diaphragmatic rupture or hernia .