Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle . The heart demonstrates mild enlargement with a left ventricular predominance . The aorta is diffusely calcified . Mediastinal and hilar contours are otherwise unremarkable . Biapical pleural parenchymal fibronodular scarring with calcifications are present . No focal consolidation , pleural effusion or pneumothorax is present . Multilevel mild to moderate degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Biapical pleural parenchymal fibronodular scarring .