Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are obtained . Midline sternotomy wires and mediastinal clips are again noted . The lungs are clear bilaterally without focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is stable . Bony structures are intact . Eventration of right hemidiaphragm is again noted . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .