Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show biapical pleural thickening with irregular contours , unchanged from ___ . The lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process .