Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are fully expanded without focal opacity . Retrocardiac atelectasis is improved . Pulmonary edema has increased , but remains mild . Moderate cardiomegaly is unchanged . No pleural effusion . A left pectoralis dual - chamber pacemaker , prostatic cardiac valve , and median sternotomy wires , some of which are fractured , are again noted and unchanged . Dense aortic arch calcifications are again noted .
    OUTPUT:
    
Increased , but mild pulmonary edema .