Volume 64, Issue 1 pp. 79-81
Clinicopathologic Challenge

Asymptomatic evanescent plaques on the buttocks of an elderly woman

Joan Ceravalls

Corresponding Author

Joan Ceravalls

Department of Dermatology, Hospital Universitari Sagrat Cor, Grupo Quirónsalud, Barcelona, Spain

Correspondence

Joan Ceravalls

Department of Dermatology

Hospital Universitari Sagrat Cor

Grupo Quirónsalud

Viladomat Street, 288

Barcelona E-08029

Spain

E-mail: [email protected]

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Noelia Pérez-Muñoz

Noelia Pérez-Muñoz

Department of Pathology, Hospital Universitari General de Catalunya, Grupo Quirónsalud, Sant Cugat del Vallès, Barcelona, Spain

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María Án. Sola

María Án. Sola

Department of Dermatology, Hospital Universitari Sagrat Cor, Grupo Quirónsalud, Barcelona, Spain

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Fernando Gallardo

Fernando Gallardo

Department of Dermatology, Hospital de Mar Research Institute, Universitat Pompeu Fabra, Barcelona, Spain

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Lluís Colomo

Lluís Colomo

Department of Pathology, Hospital de Mar Research Institute, Universitat Pompeu Fabra, Barcelona, Spain

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Ramón M. Pujol

Ramón M. Pujol

Department of Dermatology, Hospital de Mar Research Institute, Universitat Pompeu Fabra, Barcelona, Spain

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First published: 30 August 2024

Conflict of interest: None.

Funding source: None.

Abstract

B-cell epidermotropism is an exceptional finding in cutaneous lymphomas. The few cases previously described in the literature mostly correspond to systemic lymphomas, with the most frequent being splenic marginal zone lymphoma. This lymphoma can manifest as a cutaneous eruption preceding the splenomegaly, with systemic involvement demonstrated by bone marrow and/or peripheral blood. This presentation is known as epidermotropic B-cell lymphoma. Herein, we present a new case that emphasizes B-cell epidermotropism as a feature that should alert the clinician of the possibility of a secondary involvement and, consequently, prompt them to expand the recommended initial staging.

Data Availability Statement

The data underlying this article can be shared upon reasonable request by the corresponding author.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.