Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has been extubated . Generalized increased ground - glass type opacities throughout the lung parenchyma are seen , mildly improved . Poor inspiratory effort . No good evidence of pneumothorax .
    OUTPUT:
    
No pneumothorax . Improving bilateral opacities , presumptively pulmonary edema superimposed on the background interstitial process