Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are streaky bibasilar opacities , likely atelectasis . Additional linear opacity in the right mid lung sulcal atelectasis versus scarring . The lungs are otherwise clear . Cardiac silhouette is mildly enlarged as on prior . Median sternotomy wires and mediastinal clips are again noted . Tortuosity of the descending thoracic aorta is noted . There are hypertrophic changes in the spine .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process .