Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 1 day prior , no significant changes are appreciated . Left basilar opacities are similar in appearance and may reflect underlying bibasilar atelectasis or developing pneumonia . Mild cardiomegaly . Severe pulmonary artery enlargement is unchanged ___ portion to be mildly enlarged peripheral pulmonary vasculature , suggesting pulmonary hypertension . No pulmonary edema . Probable , small , bilateral pleural effusions .
    OUTPUT:
    
Unchanged , mild , bibasilar atelectasis and small pleural effusions . No pulmonary edema .