Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously seen ET tube and transesophageal tubes have been removed . Mild pulmonary edema has decreased . Small right pleural effusion appears more conspicuous than before , but the positional differences from the prior study limits comparison . Enlarged cardiac silhouette is similar to before .
    OUTPUT:
    
Mild pulmonary edema has decreased in severity .