Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low with increased bibasilar opacities . Retrocardiac atelectasis persists . The cardiomediastinal contours are unchanged . There is diffuse sclerosis of the bones concerning for metastatic disease , correlate with history of malignancy .
    OUTPUT:
    
1 . Bibasilar opacities , representing atelectasis although given the clinical history , aspiration is possible . 2 . Diffusely sclerotic bones , concerning for metastatic disease .