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Updated: Jul 10, 2026

Establishment of Epstein-Barr Virus Growth-transformed Lymphoblastoid Cell Lines
Published on: November 8, 2011
EBV-Positive Pleomorphic Variant Transformation of CD5-Negative Mantle Cell Lymphoma: A Rare Case Report and
Amy Song1, Julie Y Li2, Samuel G Cockey3
1Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY 100032, USA.
Abstract:
Mantle cell lymphoma (MCL) is a mature B-cell lymphoma associated with cyclin D family rearrangements and typically expresses CD5 and cyclin D1. Epstein-Barr virus- (EBV-) positive MCL is rare, and the role of EBV infection and its transformation in MCL remains unclear. We present a case of CD5-negative classic MCL that progressed to an EBV + pleomorphic MCL six years after the initial diagnosis. Molecular studies confirmed the same clonal origin. To the best of our knowledge, the EBV-positive transformation of CD5-negative MCL into a pleomorphic variant has rarely been reported, and its recognition is important for the diagnosis and the management of patients with MCL.
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