For most of his life, the man had a description for what he felt and no diagnosis to attach it to. He was 50, and the wish to have his leg removed was longstanding. He could feel the leg. He could move it. He could not accept it as his.
Then, after discussions in an online forum, he inflicted dry ice burns on it. The damage was severe enough to require a below-knee amputation. He reported being satisfied with the outcome.