Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sternotomy wires are intact and aligned . A Swan - ___ catheter terminates in the the right pulmonary artery . A right chest tube and external pacer wires , a left pectoral pacemaker and left ventricular assisted device remain in place . There is no pneumothorax . Persistent retrocardiac left lower lobe opacification is most likely due to atelectasis . The lungs are otherwise clear . A left IJ catheter sheath remains in place . A midline catheter projects over the lateral right scapula in the axillary line .
    OUTPUT:
    
No significant interval change .