Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . There is aortic annular calcification , and the aortic annulus measures approximately 4 .1 cm . Heart size is borderline . Again visualized are multiple calcified mediastinal lymph nodes . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
No evidence of pneumonia .