Yes I do Leesa, I was able to find what it is on Google. It can cause bleeding in the cord, and does have danger with it. That is why I was encouraging the person to seek another opinion, not just to let it ride. That good soul had alot of problems with the spine, and adding this on top of it sounded like more referrals would be a good idea. Google the word, and medical sites will pop up with huge amounts of information on this. If you can't find the sites, I will try to get you the link through PM. I went to at least 4 sites for explaination. So much information, I could not relay all of it to that good person. I also didn't want to scare our friend either. Fine line to walk there. take care dear Leesa, you help so many people! ginnie