Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs . Moderate interstitial edema has developed . Additionally there is a 3 .0 cm right perihilar opacity in the expected location of the right pulmonary artery or a hilar lymph node . There is no pleural effusion or pneumothorax . The heart size is mildly enlarged .
    OUTPUT:
    
Moderate interstitial pulmonary edema . Right hilar opacity is worrisome for a mass or adenopathy , though an enlarged pulmonary artery is also possible . Further evaluation with CT - Chest is recommended .