Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . The lungs are hyperexpanded but remain clear of consolidation or effusion . Cardiomediastinal silhouette is within normal limits . Osseous structures are diffusely osteopenic . Left upper quadrant catheter is again partially visualized .
    OUTPUT:
    
No acute cardiopulmonary process .