Rapidly developing, edematous swelling of the upper lip

Clinicians should distinguish between hereditary and non-hereditary angioedema, as management of patients varies significantly with each. As many patients with hereditary angioedema have had serious episodes of edema associated with dental procedures, it is important that dentists understand the nature of this disease and its treatment. The potential for airway obstruction by laryngeal edema requires a knowledge and preparedness for initiation of life-support measures.