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J Hematop. 2015 Dec;8(4):235-241. Epub 2015 Mar 18.

Cerebellar EBV-associated diffuse large B cell lymphoma following angioimmunoblastic T cell lymphoma.

Author information

1
Department of Pathology, Loyola University Medical Center, Rm 2222, Building 110, 2160 S 1st Ave, Maywood, IL 60153, USA.
2
Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.

Abstract

Epstein-Barr virus (EBV)-associated B cell lymphoproliferative disorders may be seen in patients with angioimmunoblastic T cell lymphoma (AITL). Although both nodal and extranodal sites of involvement have been described, central nervous system involvement by B cell lymphoma following AITL has not previously been documented. We report a first example of such unusual presentation, in which an 80-year-old man developed diffuse large B cell lymphoma (DLBCL) in the cerebellum 4 months after the initial diagnosis of AITL. EBV-encoded RNAs were detected in the DLBCL, suggesting that EBV played a pivotal role in the pathogenesis of high-grade histologic progression of AITL. The patient survived less than 9 months after his initial diagnosis of AITL. We believe that this case expands the spectrum of extranodal manifestation of EBV-positive B cell lymphoma associated with AITL and illustrates the importance of recognition of this association when encountering unusual central nervous system lesions in patients with known AITL.

KEYWORDS:

Angioimmunoblastic Tcell lymphoma; Central nervous system; Diffuse large B cell lymphoma

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