Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is re- demonstrated . Mediastinal contours are unchanged . Enlargement of the pulmonary arteries is compatible with underlying pulmonary arterial hypertension . Mild pulmonary edema is worse compared to the previous exam . Small bilateral pleural effusions are present . Retrocardiac consolidative opacity may reflect atelectasis though infection is not excluded . No pneumothorax is demonstrated .
    OUTPUT:
    
Interval worsening of mild pulmonary edema . Small bilateral pleural effusions . Retrocardiac opacity may reflect atelectasis though infection can not be excluded .