Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The hilar and mediastinal contours are normal . There is slight opacification of the right base , likely secondary to a small right pleural effusion . There is evidence of mild bibasilar atelectasis , left greater than right . There is mild bilateral pulmonary edema . No consolidations concerning for pneumonia are identified . Incidental note is made of a calcified left hilar node .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Mild pulmonary edema .