Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate surgical clips projecting over the left mediastinum . The heart is unchanged in size , mildly enlarged . There is mild to moderate pulmonary edema , similar compared to ___ . Previously noted more focal opacity in the left mid lung at that time appears improved . Patchy opacities in the right lower lung likely reflect atelectasis , though infection can not be excluded . There are small bilateral pleural effusions . No pneumothorax is visualized .
    OUTPUT:
    
1 . Mild to moderate pulmonary edema , similar to ___ . 2 . Patchy opacities in the right lower lung likely reflect atelectasis , though infection can not be excluded in the correct clinical setting . 3 . Small bilateral pleural effusions .