Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest was provided . Midline sternotomy wires and mediastinal clips are noted . The lungs appear clear without focal consolidation , effusion , or pneumothorax . Subtle nodular opacities are noted in the left mid lung . No large effusion or pneumothorax . Cardiomediastinal silhouette appears stable . Bony structures are intact .
    OUTPUT:
    
No acute findings . Subtle nodular opacities in the left mid lung . Please refer to subsequent CT of the chest for further details .