If all of these things come together the cancer has basically won and tamed the immune system successfully. All avenues of attack have been shut down and uncontrollable growth is the consequence. In the end, if left untreated, these new and optimized cancer cells become metastatic, which means that they want to explore the world and expand into other tissues or organs, where they continue growing. If this affects vital organs like the lungs, the brain, or the liver, the intricate and complex machine that is your body begins breaking down.
