Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Midline sternotomy wires and mediastinal clips are again noted . There is a coronary stent also visualized . The heart size is grossly stable and likely within normal range . There is left basilar atelectasis . The right lung is clear . No pneumothorax is seen . The left sixth lateral rib fracture seen better on the concurrent left rib series is not clearly appreciated on this exam . No additional fractures are identified .
    OUTPUT:
    
Left basilar atelectasis . No pneumothorax . Left sixth rib fracture better assessed on concurrently performed left rib series .