Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal lateral views of the chest were performed . There is no pneumothorax , pleural effusion or focal airspace consolidation . The cardiac and mediastinal contours are normal . The hilar and pleural surfaces are unremarkable . The imaged upper abdomen is normal . There are no displaced rib fractures identified .
    OUTPUT:
    
1 . No pneumothorax . 2 . No displaced rib fracture . If concern for fracture persists , a dedicated rib series with markers would be useful .