Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Known spiculated opacity with fiducial marker projects over the right hilum is not clearly delineated on today 's exam . The lungs are otherwise grossly clear . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications are seen at the aortic arch .
    OUTPUT:
    
No acute cardiopulmonary process . Node spiculated opacity in the right perihilar region better seen on prior PET - CT .