Follicular helper T-cell lymphomas: disease spectrum, relationship with clonal hematopoiesis, and mimics. A report of the 2022 EA4HP/SH lymphoma workshop.

Détails

Ressource 1Télécharger: s00428-023-03607-5.pdf (5129.22 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_E68B1A31B1EE
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Follicular helper T-cell lymphomas: disease spectrum, relationship with clonal hematopoiesis, and mimics. A report of the 2022 EA4HP/SH lymphoma workshop.
Périodique
Virchows Archiv
Auteur⸱e⸱s
Ondrejka S.L., Amador C., Climent F., Ng S.B., Soma L., Zamo A., Dirnhofer S., Quintanilla-Martinez L., Wotherspoon A., Leoncini L., de Leval L.
ISSN
1432-2307 (Electronic)
ISSN-L
0945-6317
Statut éditorial
Publié
Date de publication
09/2023
Peer-reviewed
Oui
Volume
483
Numéro
3
Pages
349-365
Langue
anglais
Notes
Publication types: Journal Article ; Review
Publication Status: ppublish
Résumé
Follicular helper T-cell lymphomas (TFH lymphomas) were discussed in session V of the lymphoma workshop of the European Association for Haematopathology (EA4HP)/Society for Hematopathology (SH) 2022 meeting in Florence, Italy. The session focused on the morphologic spectrum of TFH lymphoma, including its three subtypes: angioimmunoblastic-type (AITL), follicular-type, and not otherwise specified (NOS). The submitted cases encompassed classic examples of TFH lymphoma and unusual cases such as those with early or indolent presentations, associated B-cell proliferations, or Hodgkin/Reed-Sternberg-like cells. The relationship between TFH lymphoma and clonal hematopoiesis was highlighted by several cases documenting divergent evolution of myeloid neoplasm and AITL from shared clonal mutations. The distinction between TFH lymphoma and peripheral T-cell lymphoma, not otherwise specified (PTCL, NOS), was stressed, and many challenging examples were presented. Various cases highlighted the difficulties of differentiating TFH lymphoma from other established types of lymphoma and reactive conditions. Cutaneous T-cell lymphoma expressing TFH markers, particularly when resulting in lymph node involvement, should be distinguished from TFH lymphomas. Additional immunophenotyping and next-generation sequencing studies were performed on various cases in this session, highlighting the importance of these technologies to our current understanding and classification of TFH lymphomas.
Mots-clé
Humans, Clonal Hematopoiesis, T-Lymphocytes, Helper-Inducer/pathology, Lymphoma, T-Cell, Peripheral/pathology, Lymph Nodes/pathology, Skin Neoplasms/pathology, Angioimmunoblastic T-cell lymphoma, Clonal hematopoiesis, EA4HP workshop, High-throughput sequencing, Peripheral T-cell lymphoma, T-cell lymphoma, TFH lymphoma
Pubmed
Web of science
Open Access
Oui
Création de la notice
28/07/2023 15:52
Dernière modification de la notice
04/10/2023 7:17
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