Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from the same day from , interval development of new mild to moderate pulmonary edema . New asymmetric right lower lobe opacity . Mild cardiomegaly . No pneumothorax .
    OUTPUT:
    
Mild - to - moderate pulmonary edema with asymmetric right lower lobe opacity can be asymmetric edema , pneumonia or aspiration .