Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . There is slight increased opacification in the right middle lung field compared to the prior study . There are trace bilateral pleural effusions . There is no pneumothorax . There is mild pulmonary edema . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . New opacification in the right middle lung field compared to the prior exam , concerning for infection . 2 . Mild pulmonary edema .