Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again noted is a Port - A - Cath in the chest wall of the upper right hemithorax with the tip of the catheter ending in expected position at the cavoatrial junction . The lungs are well expanded and clear , with the exception of a small discoid atelectasis noted in the left lung base . Cardiomediastinal and hilar contours are unremarkable . There is no evidence of pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .