Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and cardiac valve replacement . There is moderate cardiomegaly . Aortic calcification is seen There is moderate pulmonary edema . More confluent opacity involving the left mid to lower lung may relate to fluid overload however , superimposed consolidation due to infection or aspiration not excluded . There is a small right pleural effusion .
    OUTPUT:
    
Moderate pulmonary edema . More confluent opacity projecting over the left mid to lower lung may relate to fluid overload , however , consolidation due to infection or aspiration not excluded in the appropriate clinical setting . Cardiomegaly . Small right pleural effusion .