Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lower lung volumes seen on the current exam . There is however new mild pulmonary edema and new small bilateral pleural effusions . Cardiac silhouette is enlarged since prior . Metallic density again seen in the left hilum . No acute osseous abnormalities .
    OUTPUT:
    
New mild pulmonary edema and small bilateral effusions since ___ .