Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is seen with mild pulmonary edema . There is also opacification at the left lung base obscuring the hemidiaphragm concerning for a moderate pleural effusion and atelectasis , but the effusion appears decresaed . An underlying pneumonia can not be fully excluded . A small right pleural effusion is noted . Median sternotomy wires are again noted , and right axillary surgical ___ are seen . An aortic valve replacement is noted .
    OUTPUT:
    
Cardiomegaly associated with mild pulmonary edema . Left lower lobe opacification likely represents a moderate pleural effusion with associated atelectasis , though an underlying consolidation can not be fully excluded . Left basilar opacification has improved , however .