Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . The heart is of normal size with normal cardiomediastinal contours . A metallic coronary artery stent overlies the left heart border . The lungs are clear without focal or diffuse abnormality . No pleural effusion or pneumothorax . The osseous structures are unremarkable .
    OUTPUT:
    
No radiographic evidence of acute cardiopulmonary process .