Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear horizontal opacities in the bilateral lung bases are unchanged from CT of ___ and consistent with atelectasis . 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 . Tiny round metallic densities projecting over the midline of the chest likely represent clothing artifact .
    OUTPUT:
    
No acute cardiopulmonary process .