Chapter 66

Erythema Multiforme, Stevens–Johnson Syndrome and Toxic Epidermal Necrolysis

Benjamin S. Daniel

Benjamin S. Daniel

Department of Dermatology, St George Hospital and University of New South Wales, Sydney, Australia

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Lizbeth Ruth Wheeler

Lizbeth Ruth Wheeler

Department of Dermatology, St George Hospital and University of New South Wales, Sydney, Australia

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Dédée F. Murrell

Dédée F. Murrell

Department of Dermatology, St George Hospital and University of New South Wales, Sydney, Australia

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First published: 20 November 2019
Citations: 1

Summary

Erythema multiforme (EM), Stevens–Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are a group of mucocutaneous diseases characterized by varying degrees of skin and mucosal involvement, with the latter two conditions associated with high morbidity and mortality. EM is typically caused by infections, especially herpes simplex virus. Patients present with target lesions with or without mucosal involvement. This is a self-limiting disease. SJS and TEN are characterized by cutaneous desquamation and mucosal involvement. They have a higher morbidity than EM. Medications and infections are the most common causes of SJS/TEN.

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