Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph , the heart is more enlarged and increased bilateral parenchymal opacity with a dilated azygos vein are concerning for pulmonary edema . Underlying infections would be obscured by the edema . No pneumothorax .
    OUTPUT:
    
Increased heart size , dilation of the azygous vein , and increased bilateral parenchymal opacities are concerning for pulmonary edema . However , underlying infections may be obscured . Therefore , repeat radiograph after diuresis is recommended .