Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to radiograph two days prior , there is notable improvement in pulmonary edema , especially evident at the apices . However , bilateral lower lung opacities persist and are concerning for pneumonia . A small right pleural effusion is likely still present but incompletely evaluated on this frontal radiograph . Moderate cardiomegaly is unchanged . There is no pneumothorax . Tortuosity and calcification of the thoracic aorta is redemonstrated .
    OUTPUT:
    
1 . Improvement in mild pulmonary edema . 2 . Bilateral lower lung opacities persist .