Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation , effusion , or pulmonary vascular congestion . Cardiomediastinal silhouette is unchanged . Mitral valve replacement and median sternotomy wires are again seen . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary process .