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 . The lungs are clear . No signs of pneumonia or CHF . No effusion or pneumothorax . The cardiomediastinal silhouette is normal . The imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .