Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is blunting of the left lateral costophrenic angle as on prior likely due to scarring . Posterior costophrenic angles are sharp without effusion . The lungs are otherwise clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected . Surgical clips seen in the upper quadrant .
    OUTPUT:
    
No acute cardiopulmonary process .