Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well aerated . No pleural effusion or pneumothorax is seen . There is stable mild cardiomegaly . The hilar and mediastinal contours are unremarkable . No displaced fractures or dislocations are seen .
    OUTPUT:
    
No evidence of displaced fractures or dislocations . However , sternoclavicular joint is difficult to evaluate on plain radiograph . If there is clinical concern , CT is recommended for evaluation of this joint .