Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate a pacemaker with the leads overlying the right atrium and ventricle . The cardiomediastinal silhouette is unchanged . Coarsened lung markings may reflect chronic lung disease . No focal consolidation is identified . There is no pleural effusion or pneumothorax . Calcification of the thoracic aorta is again seen . A wedge compression deformity of a lower thoracic vertebral body is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .