Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are lower . Mild pulmonary edema with moderate cardiomegaly is noted . There may be a small right pleural effusion which demonstrates loculation laterally and a small left pleural effusion . There is no pneumothorax . Accounting for differences in technique , the mediastinum is unchanged . Linear areas of scarring are seen in the left mid lung . The most inferior sternotomy wire is fractured .
    OUTPUT:
    
Mild pulmonary edema with low lung volumes .