Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate prominent cardiac silhouette . There is mild unfolding of the thoracic aorta . The lung volumes are slightly low . There is no pneumothorax or pulmonary edema . A small effusion possibly on the left is unchanged . Median sternotomy wires are seen . Anterior chest wall surgical ___ are in place . Trace bibasilar atelectasis may be present .
    OUTPUT:
    
No significant interval change since ___ , with mild cardiomegaly and probable left pleural effusion . No pulmonary edema .