Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large left pleural effusion which appears slightly increased as compared to the prior study , with underlying atelectasis , underlying consolidation is difficult to exclude . There is also moderate to severe pulmonary edema . More confluent right base opacity may relate to pulmonary edema , however underlying consolidation is difficult to exclude . The cardiac silhouette is grossly stable although not accurately assessed due to the bibasilar opacities . Aortic knob is calcified .
    OUTPUT:
    
Large left pleural effusion possibly minimally increased . Moderate to severe pulmonary edema . More confluent right basilar opacity may relate to pulmonary edema and small right pleural effusion however , underlying consolidation is not excluded .