Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . There is no focal consolidation , effusion , or pneumothorax . A 1 .2 cm well - circumscribed opacity projects over the left heart border but disappears upon patient repositioning . The cardiac and mediastinal contours are normal . There is no displaced rib fracture .
    OUTPUT:
    
No acute cardiopulmonary process or displaced rib fracture . A dedicated rib series with obliques is more sensitive for rib fracture .