Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest provided demonstrate low lung volumes with crowding of bronchovasculature without discrete signs of pneumonia , CHF , effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Bony structures are intact . Clips and stent noted partially visualized in the upper abdomen .
    OUTPUT:
    
Limited , negative .