Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent moderate to severe cardiomegaly . There is mild pulmonary edema . Opacity at the right lung base on the frontal view may be due to atelectasis . There is no significant effusion . Degenerative changes are noted in the spine .
    OUTPUT:
    
Cardiomegaly with mild pulmonary edema .