Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 3 cm from the carina . Overlying trauma board slightly limit assessment . The heart size is normal . Mediastinal and hilar contours are unremarkable . There is mild upper zone pulmonary vascular redistribution likely due to supine positioning without overt pulmonary edema . Minimal patchy opacities are noted in the upper lobes as well as the lower lobes bilaterally , which could reflect atelectasis or aspiration . Assessment of the left costophrenic angle is limited as it is excluded from the field of view . However , no large focal consolidation , gross pleural effusion or pneumothorax is identified on this supine exam . No displaced fractures are visualized .
    OUTPUT:
    
1 . Standard position of endotracheal tube . 2 . Patchy opacities in the upper and lower lobes bilaterally , potentially atelectasis but aspiration is not excluded .