Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly is stable . Mild pulmonary edema has improved . Small bilateral effusions with adjacent opacities are unchanged . There is no pneumothorax . There are no other interval changes
    OUTPUT:
    
Improved pulmonary edema . Bibasilar opacities adjacent to the small bilateral effusions are likely atelectasis but superimposed infection can not be excluded .