Document Type

Article

Publication Title

Cureus

Abstract

Acquired angioedema (AAE) is a rare disease with life-threatening complications. This pathology has classically been associated with medication use and B cell lymphoproliferative disorders. In this report, we describe a 61-year-old man with a six-year history of angioedema, unrelated to any known triggers or malignancy. Extensive workup has led to a diagnosis of idiopathic nonhistaminergic AAE with normal C1 inhibitor. The patient is currently being treated with lanadelumab, which has resolved the patient’s symptoms. This case provides insight into the onset, exploration, treatment, and outcomes of an extremely rare disease process.

DOI

10.7759/cureus.43841

Publication Date

8-21-2023

Keywords

InH-AAE, bradykinin, AAE, C1q autoantibody, autoimmune disease, icatibant, lanadelumab, urticaria, anti-C1q antibody, acquired angioedema

ISSN

2168-8184

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