Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prior sternotomy was done for mitral valve repair and tricuspid annuloplasty . Cardiac contour is normal . Third sternal wire is broken . The lungs are clear . Mediastinal contour is normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
There is no evidence of pneumonia . There are no acute cardiopulmonary findings .