Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 2 days prior , there has been mild improvement in pulmonary edema . There is persistent , moderate pulmonary vascular congestion . Small , bilateral pleural effusions and substantial bibasilar atelectasis are unchanged . Severe cardiomegaly is unchanged . No consolidations specifically concerning for pneumonia .
    OUTPUT:
    
Improved , but moderate pulmonary edema and unchanged , small , bilateral pleural effusions with substantial bibasilar atelectasis .