Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to previous exam from ___ . The lungs are clear . Cardiomediastinal silhouette is within normal limits and unchanged given differences in positioning and technique . Surgical clips project over the left chest wall and axilla . Gastric band is partially visualized . Osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .