Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy wires are intact . There is stable , moderate cardiomegaly . Mediastinal and hilar contours are unchanged . There are stable bibasilar opacities . Interval increase in moderate to severe pulmonary edema . No appreciable pneumothorax .
    OUTPUT:
    
Interval increase in moderate to severe pulmonary edema .