Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small left apical pneumothorax . There has been interval placement of an NG tube , the tip of which projects over the expected position of the body of the stomach . A second NG tube , tracheostomy tube , right upper extremity PICC , left chest tube , right chest tube are unchanged , and in expected position . Median sternotomy wires , surgical ___ , and clips superimposed upon the right lung apex are again noted . IVC filter is partially visualized . Airspace opacity , right greater than left is not significantly changed and may reflect atelectasis or pneumonia .
    OUTPUT:
    
1 . Small left apical pneumothorax ; left chest tube unchanged in position . 2 . Interval NG tube placement , the tip of which is superimposed upon the expected position of the stomach . 3 . Stable airspace opacity , right greater than left , atelectasis versus pneumonia .