Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The alveolar infiltrate is somewhat improved . There continue to be bilateral pleural effusions layering posteriorly . The heart size continues to be moderately enlarged . The ET tube is 2 cm above the carina . NG tube tip is in the stomach . Mid abdomen skin ___ are again seen .
    OUTPUT:
    
Changing appearance of infiltrates , likely secondary to pulmonary edema . An underlying infectious infiltrate can not be excluded .