Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval progression of perihilar opacities in the upper lung zones which likely reflects worsening neurogenic edema versus severe aspiration . The cardiac silhouette is normal . There is no pleural effusion or pneumothorax . Endotracheal tube remains in appropriate position terminating 3 .2 cm from the carina .
    OUTPUT:
    
Interval worsening of neurogenic edema and / or severe aspiration .