Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear . There is no evidence of pneumothorax or pleural effusion . The cardiac , mediastinal and hilar contours are normal . No rib fractures identified .
    OUTPUT:
    
No acute cardiopulmonary process . No definite rib fracture or pneumothorax .