Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . There is moderate atherosclerotic calcification of the aortic arch . The hilar and mediastinal contours remain within normal limits . There is no pneumothorax , focal consolidation , or pleural effusion . There is little change in appearance in comparison to the ___ radiograph .
    OUTPUT:
    
No acute intrathoracic process .