Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained demonstrating a dual - lead pacer projecting over the left upper chest with lead tips extending into the expected location of the right atrium and right ventricle . There is extensive calcified pleural plaque , which appears grossly stable . There is no definite sign of pneumonia or CHF . Pleural thickening and / or scarring likely accounts for the blunted right CP angle . Multiple old rib cage deformities are again noted . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
Chronic changes related to prior asbestos exposure with calcified pleural plaque . No definite acute intrathoracic process .