Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . The lungs are clear . The heart size is normal . Tortuosity of the descending thoracic aorta is not significantly changed . The mediastinal contours are otherwise normal . There are no pleural effusions . No pneumothorax is seen . Mild eventration of the right hemidiaphragm is unchanged .
    OUTPUT:
    
No acute intrathoracic process .