Mantle cell lymphoma with plasma cell differentiation.

Journal Article (Journal Article)

The differentiation of B lymphocytes into plasma cells (PCs) is an antigen-mediated process that largely depends on the interaction between B cells and regulatory factors in their microenvironment. Long-lived PCs are derived from activated B cells in the germinal center (GC), whereas PC differentiation from naive B cells occurs in the extrafollicular areas and the PCs are short-lived. Consequently, lymphomas arising from post-GC B cells often exhibit plasmacytic differentiation, whereas lymphomas arising from naive B cells less commonly show plasmacytic differentiation. Herein, we report 2 cases of mantle cell lymphoma (MCL) with clonal PC differentiation. Both cases presented with the typical cytologic features of MCL and were characterized by a nodular and mantle-zone growth pattern. Clusters of clonal PCs with monotypic kappa light chain expression were identified in the centers of the tumor nodules and within reactive GCs. FICTION (Fluorescence immunophenotyping and Interphase Cytogenetics as a Tool for the Investigation Of Neoplasms) analysis demonstrated the characteristic t(11;14)(q13;q32) in both the MCL cells and clonal PCs, indicating that both cell types were derived from the same B-cell clone. These findings indicate that the clonal PC differentiation may occur within GCs in some cases of MCL.

Full Text

Duke Authors

Cited Authors

  • Young, KH; Chan, WC; Fu, K; Iqbal, J; Sanger, WG; Ratashak, A; Greiner, TC; Weisenburger, DD

Published Date

  • August 2006

Published In

Volume / Issue

  • 30 / 8

Start / End Page

  • 954 - 961

PubMed ID

  • 16861965

International Standard Serial Number (ISSN)

  • 0147-5185

Digital Object Identifier (DOI)

  • 10.1097/00000478-200608000-00004

Language

  • eng

Conference Location

  • United States