Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . There is no focal consolidation , pleural effusion , or pneumothorax . A convex , linear opacity in the right lung base is stable from ___ and may represent an area of scarring . The pulmonary vasculature is normal .
    OUTPUT:
    
No cardiopulmonary process .