Editing Angioedema (section)

===Acquired angioedema===
Acquired angioedema (AAE) can be immunologic, nonimmunologic, or idiopathic.<ref name=Axelrod2011>{{cite journal|last=Axelrod|first=S|author2=Davis-Lorton, M|title=Urticaria and angioedema|journal=The Mount Sinai Journal of Medicine, New York|year=2011|volume=78|issue=5|pages=784–802|pmid=21913206|doi=10.1002/msj.20288}}</ref> It is usually caused by [[allergy]] and occurs together with other allergic symptoms and [[urticaria]]. It can also occur as a side effect to certain medications, particularly [[ACE inhibitor]]s. It is characterized by repetitive episodes of swelling, frequently of the face, lips, tongue, limbs, and genitals. Edema of the gastrointestinal mucosa typically leads to severe abdominal pain; in the upper respiratory tract, it can be life-threatening.<ref>{{cite web|last1=Moon |first1=Amanda T.|last2=Heymann |first2=Warren R.|title=Acquired Angioedema|url=http://emedicine.medscape.com/article/1048887-overview|website=MedScape|access-date=1 October 2015|url-status=live|archive-url=https://web.archive.org/web/20150905111954/http://emedicine.medscape.com/article/1048887-overview|archive-date=5 September 2015}}</ref>