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Cutaneous pseudolymphomas

T Ploysangam1, D L Breneman, D F Mutasim

  • 1Department of Dermatology, University of Cincinnati Medical Center, Ohio, USA.

Journal of the American Academy of Dermatology
|June 19, 1998
PubMed
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Cutaneous pseudolymphomas are benign skin conditions that mimic lymphoma. This review covers their classification, causes, diagnosis, and distinguishing them from true lymphomas.

Area of Science:

  • Dermatology
  • Pathology
  • Oncology

Background:

  • Cutaneous pseudolymphomas are benign lymphoproliferative disorders.
  • They present clinically and histologically mimicking cutaneous lymphomas.
  • These conditions involve reactive T- or B-cell infiltrates in the skin.

Purpose of the Study:

  • To review the classification of cutaneous pseudolymphomas.
  • To discuss pathogenesis, clinical spectrum, and diagnostic methods.
  • To highlight methods for investigating clonality to differentiate from lymphoma.

Main Methods:

  • Literature review of cutaneous pseudolymphoma research.
  • Analysis of classification systems for T- and B-cell pseudolymphomas.
  • Discussion of histopathologic, immunohistochemical, and clonality testing.

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Main Results:

  • Cutaneous pseudolymphomas are categorized into T-cell and B-cell types based on infiltrate.
  • Various subtypes exist, including drug reactions, arthropod bites, and infections.
  • Accurate diagnosis requires careful clinicopathologic correlation and clonality assessment.

Conclusions:

  • Cutaneous pseudolymphomas represent a diverse group of reactive conditions.
  • Distinguishing them from cutaneous lymphoma is crucial for appropriate management.
  • Comprehensive diagnostic approaches are essential for accurate classification.