Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral serpiginous calcified pleural plaques indicating prior asbestos exposure . The lungs are clear , without focal consolidation or pulmonary edema . No pleural effusion or pneumothorax . The heart is top - normal in size . Mild tortuosity or dilatation of the descending aorta . Mediastinal contours and hila are unremarkable .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Pleural plaques from asbestos .