Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . No pleural effusion or pneumothorax . Stable prominence of the right hilum , unchanged from ___ . Heart size , mediastinal contour , and hila are otherwise unremarkable . Aortic arch calcifications are present . Cardiac pacer and endovascular aortic valve replacement again noted . Limited assessment of the osseus structures are notable for mild multilevel degenerative changes of thoracolumbar spine with anterior osteophytes and disc space narrowing .
    OUTPUT:
    
No acute cardiopulmonary process . MILD CHRONIC CARDIOMEGALY .