Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate unchanged position of a dual - lead left - sided pacemaker with leads terminating in the right atrium and right ventricle as well as epicardial leads on the left ventricle . The cardiac silhouette is unchanged since the prior study , with slight contour bulge underlying the epicardial leads on the left ventricle , possibly representing an aneurysm . No focal opacities identified within the lungs . There is no pleural effusion , pulmonary edema , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .