Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Vagal nerve stimulator is present in the left chest wall with catheter extending into the left neck soft tissues . The heart is top normal in size . The lungs are clear . No effusion or pneumothorax is seen . The bony structures are intact . Hypertrophic changes at the right AC joint noted .
    OUTPUT:
    
No acute intrathoracic process .