Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from 1 day prior , increasing bibasal opacities are likely a combination of atelectasis and small effusions . Low lung volumes . No pulmonary edema . Mild cardiomegaly .
    OUTPUT:
    
Increasing bibasal opacities are likely a combination of atelectasis and small effusions