Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior exam performed one day earlier , there has been improvement in aeration , suggesting improving pulmonary edema . Opacities at the bilateral bases are unchanged from the prior exam . There is no new consolidation . There is no definite pleural effusion . There is no pneumothorax . The mediastinal silhouette is unremarkable . The right hilum remains prominent . Moderate cardiomegaly is unchanged . Sternal wires and a prosthetic cardiac valve are unchanged .
    OUTPUT:
    
1 . Improving pulmonary edema . Mild - to - moderate edema persists . 2 . Stable bibasilar opacities . 3 . Stable moderate cardiomegaly .