Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the chest radiograph obtained 1 day prior , multifocal opacities / pulmonary edema appear minimally improved . Support devices and lines are all unchanged and appropriately positioned . Small right pleural effusion and right pleural thickening are unchanged . Calcified mediastinal lymph nodes are unchanged .
    OUTPUT:
    
Decreased , moderate pulmonary edema . Persistent mid left lung and lower right lung opacities may be due to edema or underlying infection .