Chapter 9

Angioimmunoblastic T-cell Lymphoma

Jehan Dupuis

Jehan Dupuis

Lymphoid Malignancies Unit, Henri Mondor University Hospital, Créteil, France

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Franck Morschhauser

Franck Morschhauser

Department of Hematology, Lille University Hospital, Lille, France

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First published: 19 February 2021

Summary

The disease today referred to as angioimmunoblastic T-cell lymphoma (AITL) was first described in the 1970s. The clinical presentation has some particularities that play a role in defining AITL as a distinct clinicopathological entity. As AITL is associated with recurrent genetic mutations related to clonal hematopoiesis, it is probable that clonal hematopoiesis of indeterminate potential represents the major risk factor for the development of AITL. The cellular derivation of AITL from Tfh cells provides a rational model to explain several of the peculiar pathological and biological features inherent to AITL. Several conventional chemotherapy regimens used in the treatment of relapsed or refractory B-cell malignancies have been specifically explored in the treatment of T-cell lymphomas. Several drugs have obtained approval in the United States and/or other countries for the treatment of relapsed or refractory T-cell lymphomas.

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