Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 11 :49 is submitted .
    OUTPUT:
    
Endotracheal tube has its tip 2 .8 cm above the carina . A nasogastric tube is seen coursing below the diaphragm with the tip and side port projecting over the stomach . There continues to be bilateral diffuse airspace disease which appears slightly improved suggesting a component of superimposed edema in the setting of ARDS or a diffuse infection . Clinical correlation is advised . No pneumothorax is seen , although the sensitivity to detect pneumothorax is diminished given semi-erect technique . Overall cardiac and mediastinal contours are unchanged .