Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Dual - lead pacer is unchanged with pacer leads extending into the expected location of the right atrium and right ventricle . The lungs are clear and well expanded . No focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is stable and normal . Bony structures are intact . No free air below the right hemidiaphragm . Spurring in the lower thoracic spine is noted anteriorly .
    OUTPUT:
    
No acute intrathoracic process .