Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright portable view of the chest demonstrates hyperexpanded lungs . There is moderate cardiomegaly . Left lung base consolidation is new since prior . Small - to - moderate left pleural effusion is present . The mediastinum is unchanged . Aortic arch calcifications are noted . There is mild pulmonary edema . The patient is status post median sternotomy and CABG . There are multiple fractured sternotomy wires , unchanged . There is no pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly , small - to - moderate left pleural effusion and pulmonary edema . Left lung base consolidation may represent atelectasis or infection in the appropriate clinical setting .