Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . The lungs are clear without consolidation , effusion , or edema . Cardiomediastinal silhouette is within normal limits . Calcified AP window node is noted . Additional known calcified nodes in the hila and mediastinum are better seen on prior CT scan . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .