From: Isolated angioedema of the bowel due to C1 esterase inhibitor deficiency: a case report and review of literature
Hereditary
Acquired
Idiopathic
HAE-I
AAE-I
Nonhistaminergic
HAE-II
AAE-II
Estrogen dependent
(HAE-III)
Sex hormone dependent
Drug induced
(ACE-I, ARB)