Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As on prior , there are relatively low lung volumes . The lungs however are clear without focal consolidation , effusion , or edema . The cardiomediastinal silhouette is within normal limits noting atherosclerotic calcifications of the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .