Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The patient is status post sternotomy . There is no pleural effusion or pneumothorax . The lungs appear clear . Suture anchors are again present in the right humeral head . This sternum is suboptimally visualized but there is no convincing abnormality .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Limited view of the sternum .