Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size , mediastinal , and hilar contours are normal . The lungs are clear without pleural effusion , focal consolidation , or pneumothorax . Chest radiograph is not optimal for evaluation of chest trauma . However , no bony abnormality identified .
    OUTPUT:
    
1 . Normal chest radiograph . 2 . While chest radiograph is not optimal for evaluation of chest trauma , no bony abnormality identified .