Hello, I'm Dr. MacTaggert. Jean Grey referred me to you to help with a little issue with a friend of ours. I don't know what exactly she told you, but I'll be frank.
Ms. Pryde possesses the ability to pass through solid matter at will. Several days ago her powers triggered on, and she can't turn them off. Her molecules are drifting apart. We've put in a solution to keep her intact, however I've discovered no medical cause.
I believe it might be mental. I'm hoping you can help.