Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Nodular opacities projecting over the the mid lungs bilaterally are most compatible with nipple shadows . Cardiomediastinal silhouette is within normal limits . Coronary artery stent is identified . Atherosclerotic calcifications noted at the aortic arch . No displaced fractures identified .
    OUTPUT:
    
No acute cardiopulmonary process .