Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are unchanged . Aside from minimal left lower lobe atelectasis , the lungs are clear . There is no pneumothorax or pleural effusion . There are minimal degenerative changes in the thoracic spine . Port a - cath tip is in the cavoatrial junction .
    OUTPUT:
    
No acute cardiopulmonary abnormalities