Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires , mediastinal clips and clips projecting over the right subclavian region are again noted . The lungs remain clear . Cardiomediastinal silhouette appears unchanged . Bony structures are intact . Absence of the left fifth rib noted . No large effusion or pneumothorax .
    OUTPUT:
    
Stable cardiomediastinal silhouette . No acute findings .