Acquired angioedema (AAE) is characterized by the occurrence of transitory and recurrent subcutaneous and/or submucosal edemas resulting in swelling and/or abdominal pain due to an acquired C1 inhibitor (C1-INH) deficiency. The disease is Monarch Disease Ontology id MONDO_0019624 (acquired angioedema). Also known as: AAE, acquired C1 inhibitor deficiency, acquired angioneurotic edema, acquired angioneurotic oedema, acquired bradykinine-induced angioedema, acquired non histamine-induced angioedema.