Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph there has been significant improvement in pulmonary edema . Scattered opacities at the lung bases bilaterally likely represent atelectasis . The cardiomediastinal silhouette is top - normal in size in the aorta is tortuous . The imaged upper abdomen is unremarkable . .
    OUTPUT:
    
Interval resolution of pulmonary edema . Bibasilar opacities are likely atelectasis .