Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior exam , there is increased cephalization of vessels , perihilar fullness as well as increased interstitial markings compatible with mild pulmonary edema . A small right pleural effusion is noted . Cardiac size is mildly enlarged . Patient status post median sternotomy , aortic valve replacement and tri-lead pacemaker placement . Calcifications of the aorta are noted .
    OUTPUT:
    
Mild pulmonary edema .