Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly again noted . There is hilar congestion and mild - to - moderate pulmonary edema . Lower lung opacities may reflect edema though a superimposed pneumonia difficult to exclude . Small bilateral pleural effusions are likely present . No pneumothorax . Mediastinal contour is unchanged . Bony structures are intact .
    OUTPUT:
    
Mild to moderate pulmonary edema , small bilateral pleural effusions . Lower lung opacities may reflect edema versus superimposed pneumonia .