Merck Manual

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Angioedema
Angioedema
Angioedema

This photo shows swelling of the lips in a person with hereditary angioedema.

By permission of the publisher. From Joe E, Soter N. In Current Dermatologic Diagnosis and Treatment, edited by I Freedberg, IM Freedberg, and MR Sanchez. Philadelphia, Current Medicine, 2001.