Anyone have any experience with them? My running partner developed on a couple weeks ago. It's huge, a lump about the size of her knee cap or bigger, right around the side of her knee. At first her doctor didn't know what it was, and it caused her no discomfort, so she was still running, actually had the cyst in that 10k race that's in our avatar, and she made a PR. But a little while after her doctor got MRI results and told her what it was and not to run until they do something about it. I think she is still waiting on an appointment with orthopedic surgeon or something. She is going to miss her first half marathon next weekend we both signed up for. :-( I did some quick searching but didn't find much and almost didn't seem like what she had. Does running cause this sometimes or is that unrelated? Will it be a problem in the future or can she get back into running again? I hope this is nothing more than a temporary inconvenience.