Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lung volumes are low . There is no clear sign of pneumonia or CHF . Known pulmonary nodules seen on prior CT are too small to visualize on radiograph . Cardiomediastinal silhouette appears stable . Bony structures appear intact with AC joint arthropathy noted bilaterally .
    OUTPUT:
    
Limited , negative for acute abnormality . Please note , known lung nodules as seen on prior CT compatible with metastatic disease , can not be clearly visualized on radiograph .