Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear , without focal opacities . There is an unfolded aorta , but otherwise the cardiomediastinal and hilar contours are unremarkable . There is no cardiomegaly . There is no pleural effusion or pneumothorax . The visualized osseous structures are notable for a right cervical rib .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .