Epstein-Barr virus-driven B Cell Proliferation with CD4+ T Cell Expansion: A Lymphomatoid Granulomatosis-like Disease Related to Hyperinterleukin-10 Secretion of Remarkably Favourable Outcome with Rituximab

Scandinavian Journal of Immunology
Pascale CerveraPaul Coppo

Abstract

Granulomatous lymphomatosis is an Epstein-Barr virus (EBV)-driven B cell proliferation associated with an exuberant CD4(+) T cell reaction with usually histopathological pictures of angiocentrism. So far, the characteristics of CD4(+) T cells in granulomatous lymphomatosis and the mechanism leading to their expansion remain poorly explored. We report a 56-year-old female with a past history of cold agglutinin disease, which was successfully treated with 4 weekly infusions of rituximab. She presented one year later with features of granulomatous lymphomatosis that resulted in severe lung and bone marrow infiltration. We provide evidence that CD4(+) T cell expansion was oligoclonal, involved anergic cells and did not result from an EBV-driven stimulation. Rather, it resulted possibly from a high production of interleukin-10 by immunoblastic EBV-positive B cells. The outcome was remarkably favourable with rituximab and steroids. Our results suggest that an EBV-driven B cell proliferation should be investigated in patients presenting with a CD4(+) T cells alveolitis or other systemic manifestations resulting from a CD4(+) T cell expansion. These features should prompt to introduce an immunosuppressive therapy including steroids and...Continue Reading

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Citations

Sep 8, 2017·Clinical Case Reports·Pascale CerveraPaul Coppo
Aug 10, 2020·Pathology·Shinji ShimadaMing-Qing Tang

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