Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph is obtained . Diffuse osseous sclerosis is compatible with known diffuse metastatic disease . There is bibasilar opacity with loss of lung volume , likely representing atelectasis , not significantly changed from the prior chest radiograph . Cardiomediastinal silhouette appears normal .
    OUTPUT:
    
Diffuse osseous metastatic disease . Bibasilar atelectasis . Please refer to subsequent CT chest for further details .