This long article (28 pages) is about people who suffer from body integrity identity disorder (BIID), in which they feel very strongly that one or more body part does not belong to them. It impacts their very identity of self negatively, and they very often seek to have the offending part removed.
The article was very interesting and well written, with sympathy for the sufferers, but I felt it was a little one-sided. Although the author made it clear that the medical establishment does not view amputation as a valid treatment for the disorder, there wasn't much detail about why they object to it.