Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect frontal chest radiograph again demonstrates mild cardiomegaly and moderate pulmonary edema , with slightly improved aeration of the right mid to low lung compared to ___ . Slightly more focal opacity in the left mid lung with sparing of the left costophrenic angle could also represent pulmonary edema , but superimposed infection can not be excluded in the right clinical setting . There are bilateral pleural effusions , moderate to large on the right and trace the small on the left . No pneumothorax is visualized .
    OUTPUT:
    
Moderate pulmonary edema . Slightly more focal opacity in the left mid lung with sparing of the left costophrenic angle could also reflect pulmonary edema , but superimposed infection can not be excluded in the right clinical setting .