Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Heart size and cardiomediastinal contours are normal . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . Chest radiograph is insensitive in the detection of subtle trauma to chest cage , but no displaced rib fracture is identified . The lateral left lower ribs are excluded on this film .
    OUTPUT:
    
No displaced rib fracture or pneumothorax .