Distinguishing Between Hepatosplenic T-cell Lymphoma and γδ T-cell Large Granular Lymphocytic Leukemia: A Clinicopathologic, Immunophenotypic, and Molecular Analysis.

Journal Article (Journal Article)

Hepatosplenic T-cell lymphoma (HSTCL) is a rare, aggressive T-cell lymphoma that can be challenging to diagnose. In particular, distinguishing HSTCL from T-cell large granular lymphocytic (T-LGL) leukemia of γδ T-cell receptor (TCR) type is difficult without examination of a splenectomy specimen. In this study, we systematically assessed a series of HSTCL cases for findings reported in the literature as supporting or not supporting the diagnosis of HSTCL. We also compared HSTCL with a group of cases of T-LGL of γδ TCR type. Criteria assessed in this study included: B-symptoms, massive splenomegaly, lymphadenopathy, extranodal involvement, peripheral lymphocytosis, lymphoma cells that expand bone marrow sinuses, lymphocyte azurophilic granules, immunophenotype, evidence of infection by Epstein-Barr virus, human immunodeficiency virus, or human T-cell leukemia virus type 1, isochromosome 7q, trisomy 8, and TCR gene rearrangement status. On the basis of the data of this study, we conclude that massive splenomegaly, bone marrow sinusoidal expansion by lymphoma cells, and lymphocytes devoid of azurophilic granules were significantly more common in HSTCL patients than in γδ T-LGL patients (P<0.0001), and these features help support the diagnosis of HSTCL.

Full Text

Duke Authors

Cited Authors

  • Yabe, M; Medeiros, LJ; Wang, SA; Tang, G; Bueso-Ramos, CE; Jorgensen, JL; Bhagat, G; Chen, W; Li, S; Young, KH; Miranda, RN

Published Date

  • January 2017

Published In

Volume / Issue

  • 41 / 1

Start / End Page

  • 82 - 93

PubMed ID

  • 27755009

Electronic International Standard Serial Number (EISSN)

  • 1532-0979

Digital Object Identifier (DOI)

  • 10.1097/PAS.0000000000000743

Language

  • eng

Conference Location

  • United States