Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low , causing exaggeration of the heart size and accentuation of the pulmonary vasculature . Compared to ___ , there are new bilateral predominantly lower lung heterogeneous opacities . Small right and likely tiny left pleural effusions are also new . The heart is mildly enlarged . The mediastinal contours are normal . There is no pneumothorax .
    OUTPUT:
    
Predominantly bibasilar heterogeneous opacities with small right and likely tiny left pleural effusions are likely mild pulmonary edema although concomitant infection can not be excluded . Findings were discussed with Dr . ___ by Dr . ___ at 4 :21 a .m . via telephone on the day of the study .