Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette appears top normal in size . There is mild tortuosity of the descending aorta . Patient is status post median sternotomy . The mediastinum is well defined and the hilar contours are within normal limits . There is no definite focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary findings . Mediastinal contour appears grossly unremarkable , however CT is recommended if there is strong clinical concern .