Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube ends at the carina . The orogastric tube is in appropriate position . The cardiac pacer and right IJ line are in change . Extensive bilateral parenchymal opacities are similar . No pleural effusion or pneumothorax identified . Cardiac and mediastinal contours are stable .
    OUTPUT:
    
1 . The endotracheal tube ends at the carina and could be pulled back 2 .5 cm . 2 . The orogastric tube is in appropriate position . 3 . Extensive bilateral parenchymal opacities are consistent with ARDS , but could also represent extensive pulmonary edema or infection .