Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest compared to previous exam from ___ . The lungs are clear of focal consolidation or effusion . Cardiomediastinal silhouette is within normal limits . Median sternotomy wires are again noted . The osseous and soft tissue structures otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .