Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One AP portable view of the chest . Median sternotomy wires are stable . There is elevation of the left hemidiaphragm with adjacent compressive atelectasis . The lungs are overall clear . The mediastinal and hilar contours are normal . There is no pneumothorax .
    OUTPUT:
    
Elevation of the left hemidiaphragm and small adjacent compressive atelectasis . Otherwise , the lungs are clear .