Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is pulmonary vascular congestion with mild interstitial pulmonary edema . Heterogeneous opacity at the right lung base could be atelectasis or pneumonia . Moderate cardiomegaly is slightly decreased compared to ___ . The mediastinal contours are normal . Aortic calcifications are noted . There are no definite pleural effusions . No pneumothorax is seen . Carotid artery calcifications are noted .
    OUTPUT:
    
1 . Mild interstitial pulmonary edema . 2 . Decreased moderate cardiomegaly . 3 . Heterogeneous right basilar opacity could be atelectasis or pneumonia .