question: I have stage Iv colon cancer, spread to liver. I have one tumor in the left lobe of my liver. I had malignant ascites. I am 80 years old and have osteoporosis with several compression fractures (all of which I have had fixed) so why is my back hurting so bad? I had a an x-ray several days ago and they did not find any more fractures but my back continues to hurt.