Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires are noted . Prominent mediastinal contour relates to known thoracic aortic aneurysm status post repair . Clips in the right subclavian region are noted . The lungs are clear . No signs of pneumonia or overt CHF . There is likely a small left pleural effusion . The heart is stably enlarged . No pneumothorax . No bony injuries .
    OUTPUT:
    
Stable prominence of the cardiomediastinal silhouette . Possible small left pleural effusion .