Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiac silhouette is mildly enlarged . The mediastinal silhouette , hilar contours , and pleural surfaces are normal . No pleural effusion or pneumothorax is present . Mid thoracic vertebral body compression fractures are chronic . There is diffuse calcification of mitral annulus . Note is made of a healed fracture in the right 7th rib .
    OUTPUT:
    
No acute intrathoracic process . Diffuse mitral annular calcification .