Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires and mediastinal clips again noted . Lungs are clear . Mild pleural thickening at the left lung base is noted . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures appear intact . Stable wedging of a lower thoracic vertebral body again seen .
    OUTPUT:
    
No acute findings .