Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Since prior there has been interval median sternotomy . The ___ and ___ sternotomy wires from the top are fractured . There has been interval cardiac enlargement . Dilation of the azygous vein and indistinct pulmonary vascular markings suggest vascular congestion . There is no large pleural effusion . No acute osseous abnormalities detected .
    OUTPUT:
    
Cardiomegaly , new since prior . Mild pulmonary edema .