Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy with bullet fragments and a clip again demonstrated within the lower thoracic spine . Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Minimal left basilar streaky opacity likely reflects atelectasis . No pleural effusion , focal consolidation or pneumothorax is otherwise demonstrated . Remote left - sided rib fractures are noted , but no acutely displaced fracture is identified . Clips are again seen in the left upper quadrant of the abdomen .
    OUTPUT:
    
Streaky left basilar opacity , likely atelectasis . No pneumothorax or acute displaced fracture identified . If there is continued concern for a rib fracture , consider a dedicated rib series .