Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased airspace opacification of the right lung base , which may be due to aspiration or infection . Slightly increased retrocardiac left basilar airspace opacification may either be due to atelectasis or aspiration . There is also new mild pulmonary edema . There is no pneumothorax . The patient has had prior median sternotomy . A left pectoral AICD remains in place .
    OUTPUT:
    
New bibasilar airspace opacities might be due to aspiration or infection . New mild pulmonary edema . Stable cardiomegaly .