Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates persistent diffuse bilateral parenchymal opacities , which is worsened over the interval . Cardiomediastinal and hilar contours are unchanged . The endotracheal tube ends 4 .9 cm from the carina . Nasogastric tube courses into the stomach .
    OUTPUT:
    
Interval increase in diffuse bilateral parenchymal opacities consistent with worsening pulmonary edema . Pneumonia can not be excluded .