Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had prior aortic valve replacement with intact and aligned sternotomy wires . The left chest tube has been removed . There is no pneumothorax . A left PICC line terminates in the mid SVC . Advancement by 2 cm would position its tip at the superior cavoatrial junction . Aside from left basilar linear atelectasis , the lungs are clear .
    OUTPUT:
    
No pneumothorax following left chest tube removal . No other significant interval change