Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An azygos lobe is re-demonstrated . The heart size is normal . The hilar and mediastinal contours are within normal limits . The aorta is mildly calcified and tortuous . No focal consolidation , pleural effusion , or pneumothorax is seen .
    OUTPUT:
    
No acute intrathoracic process .