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Toxic epidermal necrolysis-like acute cutaneous lupus erythematosus

Department of Dermatology, Hospital Juan Canalejo, La Coruna, Spain

W. Martínez-Gómez

Department of Dermatology, Hospital Juan Canalejo, La Coruna, Spain

B. Fernández-Jorge

Department of Dermatology, Hospital Juan Canalejo, La Coruna, Spain

I. Castiñeiras

Department of Dermatology, Hospital Juan Canalejo, La Coruna, Spain

T. Yebra-Pimentel

Department of Pathology, Hospital Juan Canalejo, La Coruna, Spain

P. Llinares

Department of Internal Medicine, Hospital Juan Canalejo, La Coruña, Spain

E. Fonseca Capdevila

Department of Dermatology, Hospital Juan Canalejo, La Coruna, Spain, efonseca{at}canalejo.org

The term `Acute Syndrome of Apoptotic Pan-Epidermolysis' (ASAP) designs clinical entities characterized by massive cleavage of the epidermis resulting from hyperacute epidermal basal cell apoptotic injury. It can be seen typically in classic toxic epidermal necrolysis (TEN), but occasionally occurs in non-dru1g-induced entities called `TEN-like' diseases (e.g., lupus erythematosus (LE), acute graft versus host disease and pseudoporphyria).

We would like to highlight the difficulties of establishing differential diagnoses between `TEN-like' LE and drug reactions, especially when LE has not been previously diagnosed. We report a patient with fulminate pattern of epidermal cell injury resulting in a clinical presentation having combined features of drug-induced TEN and acute cutaneous LE with laboratory findings of systemic LE (SLE) and without systemic symptoms or high-risk drug ingestion. Although most cases of ASAP in the setting of LE are drug-induced TEN, there are reported cases of `TEN-like' LE with subacute progression, absence of systemic involvement and lack of drug ingestion. Such cases usually have a previous history of SLE and positive serologic markers. Although some authors observed that these lesions could be related to systemic severity of SLE, this is the first patient reported who progresses to discoid LE and we think it could be a marker of good prognosis. Lupus (2007) 16, 741—745.

Key Words: Acute Syndrome of Apoptotic Pan-Epidermolysis • cutaneous lupus erythematosus • toxic epidermal necrolysis

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