Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are parenchymal opacities , most pronounced at the lung bases bilaterally , which most likely represents pulmonary edema . However , pneumonia or aspiration can not be excluded . There are likely small pleural effusions bilaterally . There is upper zone redistribution . No pneumothorax . Heart size is mildly enlarged . Right - sided hemodialysis dual - lumen catheter terminates in the right atrium . Note is made of surgical clips in the left paratracheal region , near the left lung apex .
    OUTPUT:
    
Parenchymal opacities predominantly at the lung bases along with probable pleural effusions most likely represents pulmonary edema . However , infection or aspiration can not be excluded in the appropriate clinical setting . Small bilateral pleural effusions can not be excluded .