Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged . Multiple surgical clips are seen projecting over the cardiac silhouette . Median sternotomy wires are noted . There is mild to moderate pulmonary edema superimposed on reticulonodular diffuse opacities which could suggest a chronic lung disease . Blunting of the bilateral costophrenic angles could relate to small pleural effusions . There is no pneumothorax
    OUTPUT:
    
Cardiomegaly and mild to moderate pulmonary edema in the background of possible pulmonary fibrosis . Suggest comparison to prior chest imaging , particularly any chest CT scans .