Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine AP portable view of the chest was obtained . Endotracheal tube is seen , terminating approximately 5 cm above the level of the carina . There are diffuse bilateral airspace opacities with a relative perihilar distribution , most suggestive of pulmonary edema , however , in the appropriate clinical setting , superimposed infection is not excluded . There is minimal blunting of the costophrenic angles which could relate to trace effusions or pleural thickening . The cardiac silhouette is top normal . The aortic arch is calcified .
    OUTPUT:
    
1 . Endotracheal tube in appropriate position . 2 . Diffuse bilateral airspace opacities in a relative perihilar distribution suggest pulmonary edema ; however , in the appropriate clinical setting , a superimposed infectious process can not be excluded .