Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . The lungs are clear . No focal consolidation , effusion , or pneumothorax is present . The heart and mediastinal contour are normal . Minimal aortic arch calcifications are present . Left chest cardiac device has leads projecting over the right atrium and right ventricle . A mitral valve mechanical prosthesis is in expected location . Median sternotomy wires are intact .
    OUTPUT:
    
No acute cardiomediastinal process .