Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates symmetrically expanded lungs . Patient is status post median sternotomy , the wires which appear intact . Several clips project over the left mediastinal border . Heart size is within normal limits . Hilar contour is normal . There is no evidence of pulmonary edema or pneumothorax . No obvious rib fracture is identified . Chronic compression deformity of a lower thoracic vertebral body is noted .
    OUTPUT:
    
No acute cardiopulmonary process . No rib fractures identified . If clinically warranted , dedicated rib films can be obtained with radiopaque markers indicating site of concern .