inflammatory pseudotumor

Diagnosis of EBV-Associated Inflammatory Pseudotumor in the Spleen: A Case Report

RARE HEMATOLOGICAL TUMORS AND SYNDROMES , , , ,

DI Chebotarev, AM Kovrigina, SM Korzhova, KI Danishyan, KR Sabirov

National Medical Hematology Research Center, 4а Novyi Zykovskii pr-d, Moscow, Russian Federation, 125167

For correspondence: Dmitrii Il’ich Chebotarev, 4а Novyi Zykovskii pr-d, Moscow, Russian Federation, 125167; Tel.: +7(916)091-27-09; e-mail: chebadmitry@gmail.com

For citation: Chebotarev DI, Kovrigina AM, Korzhova SM, et al. Diagnosis of EBV-Associated Inflammatory Pseudotumor in the Spleen: A Case Report. Clinical oncohematology 2019;12(4):428–33 (In Russ).

DOI: 1021320/2500-2139-2019-12-4-428-433

ABSTRACT

The paper focuses on Epstein-Barr virus (EBV)-associated inflammatory pseudotumor in the spleen, an extremely rare disease which so far remained undefined in the Russian literature. The morphology of it is not characterized by any specific features and is represented by a spindle-cell component with pronounced inflammatory infiltration which complicates differential diagnosis. Previously this nosology was regarded within a group of the so-called inflammatory pseudotumors due to the similarity of the clinical course and radiological presentation with tumor processes. Today the term “inflammatory pseudotumor” is considered obsolete, since as pathogenesis was being studied within this disease group, the individual forms with similar morphology and different histogenesis were identified. Differential diagnosis in the context of additional diagnostic techniques is based in such cases on a wide range of reactive states, benign and malignant tumors.

Keywords: inflammatory pseudotumor, inflammatory myofibroblastic pseudotumor, EBV-associated inflammatory pseudotumor in the spleen, IgG4-associated diseases, variant of follicular dendritic cell sarcoma similar to inflammatory pseudotumor.

Received: May 19, 2019

Accepted: September 15, 2019

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