Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest demonstrates normal lung volumes . Costophrenic angles are minimally blunted , suggestive of trace pleural effusions . Bibasilar opacities obscure hemidiaphragms . Right lung base opacity is more conspicuous on today 's exam . Moderate pulmonary edema . Hilar and mediastinal silhouettes are unremarkable . Heart is mildly enlarged .
    OUTPUT:
    
Moderate pulmonary edema with mild cardiomegaly and possible trace pleural effusions , progressed from ___ exam .