Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged with a left ventricular configuration . There is mild unfolding of the thoracic aorta . The cardiac , mediastinal and hilar contours appear stable . There is a small eventration of the right hemidiaphragm . The lungs appear clear . Mild degenerative changes are similar along the visualized thoracic spine . Right breast is absent .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .