Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Patient is status post median sternotomy and cardiac valve replacement . No focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac silhouette is mildly enlarged . Mediastinal contours are similar to ___ . Evidence of DISH is seen along the spine .
    OUTPUT:
    
No acute cardiopulmonary process .