I had silicone injected into my buttock 4 months ago.I have pain and swelling...no discoloration.The substance that has move to my knees and legs and feet.Its starting to harden just before my knees.I have had an MRI..which confirmed.Now i'm requesting another one.Because now I believe it to be in my back.A doctor is willing to remove all substance from buttock.Can it be removed for legs, and knee.QUESTION: Just as it moves on it own.Can you have it massage back to a general area? Do I have any hope?