Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or edema . The cardiomediastinal silhouette is within normal limits . Oval each a linear density projecting just lateral to the aortic arch is likely embolic material unchanged from prior . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .