Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent eventration of the right hemidiaphragm , best seen on ___ . Median sternotomy wires are noted . There is no focal consolidation , pleural effusion , or pneumothorax . The heart size is top normal . Mitral valve replacement is also noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .