Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . There is an AICD in unchanged position . Sternotomy wires and mediastinal clips are again noted . Lungs are clear without focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is stable with an unfolded thoracic aorta again noted . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .