Primary Angioedema- Idiopathic histaminergic angioedema- Hereditary/acquired angioedema due to C1 inhibitor deficiency- Hereditary angioedema with normal C1 inhibitor- Idiopathic non-histaminergic angioedemaIdiopathic Systemic Capillary Leak SyndromeYet poorly defined forms of periodic edema- Recurrent retroperitoneal edema- Recurrent female periodic edema of unknown origin- Recurrent edema in patients with hypereosinophilia (Gleich's syndrome). Here, SERPING1 is linked to edema.