Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a slightly ectatic descending thoracic aorta with atherosclerotic calcifications identified along the ascending portion and arch . Cardiomediastinal and hilar contours are otherwise unremarkable . Lungs are clear . No pleural effusion or pneumothorax identified . No osseous abnormality is present .
    OUTPUT:
    
No acute intrathoracic process .