Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single AP chest radiograph was obtained . The lungs are well expanded and clear . There is no focal consolidation , effusion , or pneumothorax . Well circumscribed nodular opacities projecting over both lung bases are compatible with nipple shadows . Cardiomegally is mild . Mild aortic arch calcifications are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .