Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . The pulmonary vasculature is unremarkable . The lungs are clear without focal or diffuse abnormality . No pneumothorax , pneumomediastinum , or pleural effusion . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . No pneumomediastinum .