Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild pulmonary edema has improved . Left lower lobe opacity which is mostly atelectasis and small pleural effusion is unchanged . A superimposed infection can not be excluded . There is no pneumothorax . Mild cardiac contour enlargement is stable .
    OUTPUT:
    
1 . Mild pulmonary edema has completely resolved . 2 . Most of the stable left lower lobe consolidation is due to atelectasis and small pleural effusion . A superimposed infection can not be excluded .