Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy with intact sternotomy wires . The lungs are clear without focal consolidation , effusion , or pneumothorax . A 4 - mm nodular opacity in the right lower lobe is apparent on today 's exam , as are the subtle nodular opacities in the left lower lobe previously noted on the ___ radiograph and better seen on the CT from ___ . Bony structures are intact . Cardiomediastinal silhouette appears stable .
    OUTPUT:
    
No acute cardiopulmonary process .