Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Lungs are relatively hyperinflated . There is blunting of the left lateral costophrenic angle potentially due to atelectasis versus scar . Posterior costophrenic angles are relatively sharp . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications are noted in the thoracic aorta . Degenerative changes are noted in the spine . Surgical clips project over the left axillary region .
    OUTPUT:
    
No definite acute cardiopulmonary process .