Current Concepts in Nodal Peripheral T-Cell Lymphomas

Surg Pathol Clin. 2023 Jun;16(2):267-285. doi: 10.1016/j.path.2023.01.011. Epub 2023 Apr 3.

Abstract

This review summarizes the current understanding of mature T-cell neoplasms predominantly involving lymph nodes, including ALK-positive and ALK-negative anaplastic large cell lymphomas, nodal T-follicular helper cell lymphoma, Epstein-Barr virus-positive nodal T/NK-cell lymphoma, and peripheral T-cell lymphoma (PTCL), not otherwise specified. These PTCLs are clinically, pathologically, and genetically heterogeneous, and the diagnosis is made by a combination of clinical information, morphology, immunophenotype, viral positivity, and genetic abnormalities. This review summarizes the pathologic features of common nodal PTCLs, highlighting updates in the fifth edition of the World Health Organization classification and the 2022 International Consensus Classification.

Keywords: Anaplastic large cell lymphoma; Epstein-Barr virus–positive nodal T/NK-cell lymphoma; Peripheral T-cell lymphoma; T-follicular helper cell lymphoma.

Publication types

  • Review

MeSH terms

  • Epstein-Barr Virus Infections* / diagnosis
  • Epstein-Barr Virus Infections* / pathology
  • Herpesvirus 4, Human / genetics
  • Humans
  • Lymph Nodes / pathology
  • Lymphoma, T-Cell, Peripheral* / diagnosis
  • Lymphoma, T-Cell, Peripheral* / genetics
  • Lymphoma, T-Cell, Peripheral* / pathology
  • Receptor Protein-Tyrosine Kinases

Substances

  • Receptor Protein-Tyrosine Kinases