Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Mild blunting of the left lateral costophrenic angle is most suggestive of atelectasis . The lungs are otherwise clear without consolidation or pneumothorax . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormality detected .
    OUTPUT:
    
No acute cardiopulmonary process .