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Histopathological Spectrum and Immunophenotypic Characterization of Symmetrical Drug-Related Intertriginous and Flexural Exanthema.
Muresan, Ana-Maria; Metze, Dieter; Böer-Auer, Almut; Braun, Stephan A.
Afiliación
  • Muresan AM; Department of Dermatology, University Clinic Münster, Münster, Germany.
  • Metze D; Department of Dermatology, University Clinic Münster, Münster, Germany.
  • Böer-Auer A; Department of Dermatology, University Clinic Münster, Münster, Germany.
  • Braun SA; Dermatologikum Hamburg, Hamburg, Germany ; and.
Am J Dermatopathol ; 43(2): 103-111, 2021 Feb 01.
Article en En | MEDLINE | ID: mdl-32618703
ABSTRACT

INTRODUCTION:

Symmetrical drug-related intertriginous and flexural exanthema (SDRIFE) is a clinically very well-defined drug eruption, but the histopathological findings are still considered to be nonspecific.

OBJECTIVES:

To characterize the histopathological and immunophenotypical features of SDRIFE. MATERIAL AND

METHODS:

We performed a retrospective study that identified 11 biopsies from 9 patients with SDRIFE. The histopathological features were analyzed in conjunction with the immunohistochemical findings.

RESULTS:

The most common histopathological feature was basal cell vacuolization, which was often associated with necrotic keratinocytes and focal spongiosis. TIA1+ T cells and neutrophils were frequently detected in the epidermis and at the dermoepidermal junction. The dermal inflammatory infiltrate was mixed, consisting of CD3+ T cells, macrophages, granulocytes, low numbers of CD20+ B cells, and plasma cells. A combination of histopathological patterns was observed in 5 cases. The most frequent combined histopathological patterns were interface dermatitis, spongiotic dermatitis, and psoriasiform dermatitis. Other histopathological patterns found in different combinations were pustular dermatitis, perivascular and interstitial neutrophilic dermatitis, and interstitial granulomatous dermatitis. In the other 4 cases, a single histopathological pattern predominated, such as psoriasiform dermatitis, vacuolar interface dermatitis of erythema multiforme-like type, or superficial and deep perivascular and interstitial dermatitis with eosinophils and neutrophils.

CONCLUSIONS:

SDRIFE is characterized histologically by a vacuolar interface dermatitis induced by cytotoxic T lymphocytes and neutrophilic granulocytes. This pattern may be obscured by accompanying spongiotic, psoriasiform, or pustular features combined with a mixed superficial and sometimes deep dermal infiltrate.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piel / Inmunohistoquímica / Linfocitos T Citotóxicos / Inmunofenotipificación / Erupciones por Medicamentos / Exantema / Neutrófilos Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Aged80 / Female / Humans / Male / Middle aged Idioma: En Revista: Am J Dermatopathol Año: 2021 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piel / Inmunohistoquímica / Linfocitos T Citotóxicos / Inmunofenotipificación / Erupciones por Medicamentos / Exantema / Neutrófilos Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Aged80 / Female / Humans / Male / Middle aged Idioma: En Revista: Am J Dermatopathol Año: 2021 Tipo del documento: Article País de afiliación: Alemania