Initial presentation of hereditary angioedema as abdominal pain and ascites in puerperium: case report.

Hereditary angioedema is a rare genetic disorder resulting from an inherited deficiency or dysfunction of the C1 inhibitor. It is characterized by recurrent, circumscribed, and self-limiting episodes of cutaneous and mucous membrane swelling involving different organs. Hereditary angioedema may present with diverse clinical pictures, even within families with the same mutation. We present a first reported case of type 1 hereditary angioedema in a young woman presenting as recurrent abdominal pain associated with ascites without any other clinical features of hereditary angioedema, with initial presentation in puerperium. The recognition or awareness of hereditary angioedema as a cause of acute and/or recurrent abdominal pain associated with ascites is important, and may avoid unnecessary invasive procedures and facilitate appropriate treatment.