Angioimmunoblastic T-cell lymphoma causes
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [5]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [6]
Causes
AILT was originally thought to be a premalignant condition, termed angioimmunoblastic lymphadenopathy, and this atypical reactive lymphadenopathy carried a risk for transformation into a lymphoma. Currently, it is postulated that the originating cell for this disease is a mature (post-thymic) CD4+ T-cell that arises de novo, although some researchers argue that there is a premalignant subtype of this disease.[1][2] The Epstein Barr virus (EBV) is observed in the majority of cases, and the virus has been found in the reactive B-cells that comprise part of the polymorphous infiltrate of this disease[3] and in the neoplastic T-cells.[4] Immunodeficiency is also seen with this disease, but it is thought to be a sequela to the condition and not a predisposing factor.
References
- ↑ [1] Frizzera G, Kaneko Y, Sakurai M. "Angioimmunoblastic lymphadenopathy and related disorders: a retrospective look in search of definitions." Leukemia. 1989 Jan;3(1):1-5. PMID: 2642571
- ↑ [2] Smith JL, Hodges E, Quin CT, McCarthy KP, Wright DH. "Frequent T and B cell oligoclones in histologically and immunophenotypically characterized angioimmunoblastic lymphadenopathy." Am J Pathol. 2000 Feb;156(2):661-9. PMID: 10666395
- ↑ [3] Weiss LM, Jaffe ES, Liu XF, Chen YY, Shibata D, Medeiros LJ. "Detection and localization of Epstein-Barr viral genomes in angioimmunoblastic lymphadenopathy and angioimmunoblastic lymphadenopathy-like lymphoma." Blood. 1992 Apr 1;79(7):1789-95. PMID: 1373088
- ↑ [4] Anagnostopoulos I, Hummel M, Finn T, Tiemann M, Korbjuhn P, Dimmler C, Gatter K, Dallenbach F, Parwaresch MR, Stein H. "Heterogeneous Epstein-Barr virus infection patterns in peripheral T-cell lymphoma of angioimmunoblastic lymphadenopathy type."Blood. 1992 Oct 1;80(7):1804-12. PMID: 1327284