Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . There is no pleural effusion , pneumothorax or focal airspace consolidation . Cardiac and mediastinal contours are unremarkable . There is scarring at the right lung apex . The hilar structures are normal . A left pectoral pacemaker in unchanged position .
    OUTPUT:
    
No acute cardiopulmonary process .