Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild - to - moderate pulmonary edema is unchanged with probable bilateral mild - to - moderate pleural effusion . Left lower lobe consolidation is unchanged since ___ , mostly explained by atelectasis ; however , a superimposed infection can not be excluded . Patient had prior sternotomy for CABG with moderate cardiomegaly . Right dialysis catheter ends in right atrium . There is no pneumothorax .
    OUTPUT:
    
1 . Mild - to - moderate pulmonary edema is unchanged . 2 . Left lower lobe consolidation is unchanged since a month , mostly explained by atelectasis ; however , a superimposed infection can not be excluded .