Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is unchanged . Areas of linear atelectasis are identified in the bilateral lung bases . No focal consolidation or pneumothorax . Small left pleural effusion is unchanged . Median sternotomy wires are intact .
    OUTPUT:
    
Stable postoperative appearance of the chest , with a small left pleural effusion and bibasilar atelectasis .