Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well - expanded and clear . No pleural effusion or pneumothorax . Heart size is normal . Cardiomediastinal hilar silhouettes are unremarkable . Aortic knob calcifications are noted . There is a small to moderate hiatal hernia . There is apparent resort shin of the distal clavicles . T4 and T12 compression deformities are unchanged compared to ___ CT .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . Apparent resorption of the distal clavicles raises the possibility of hyperparathyroidism . 3 . Small to moderate hiatal hernia . 4 . T4 and T12 compression deformities are unchanged .