Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are essentially clear . Blunting of the right posterior costophrenic angle could represent a small effusion . The cardiac silhouette is top - normal in size . Atherosclerotic calcifications noted at the aortic arch as well as a slightly tortuous descending thoracic aorta . There is no acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary process .