Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no displaced rib fracture seen . There is no pleural effusion , pneumothorax or focal airspace consolidation . Bibasilar atelectasis is present . The heart size and pulmonary vascularity are normal . The mediastinum is unremarkable .
    OUTPUT:
    
No displaced rib fracture . If concern for rib fracture persists , a dedicated rib series with markers would be of utility .