Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Marked enlargement of the cardiac silhouette , not significantly changed . Left mid to lower lung zone and right lung patchy airspace opacities are increased since prior and most likely reflect pulmonary edema . Small bilateral pleural effusions are present . No pneumothorax . Left axillary surgical clips .
    OUTPUT:
    
Pulmonary edema , slightly increased since prior .