Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . Heart size and mediastinal contours are normal . Noted is a discontinuity in the inferior - most sternal wire , of doubtful clinical significance . There is no pleural effusion or pneumothorax . Contrast from a prior CT scan is noted in the large bowel .
    OUTPUT:
    
No acute cardiopulmonary process .