Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exaggerated thoracic kyphosis and aortic calcifications are again noted . Deviation of the trachea to the right is chronic and may relate to an enlarged thyroid gland . Cardiomediastinal silhouette is stable . Lungs are clear . A focal opacity inferior to the left clavicle and lateral to the aortic arch was present previously and likely represents prominent costochondral calcifications . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No substantial change compared to prior study . No evidence of pneumonia .