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  • Title: Clinical characteristics and treatment outcome in a Taiwanese population of patients with Epstein-Barr virus-positive diffuse large B-cell lymphoma.
    Author: Lu CH, Lee KF, Chen CC, Chen YY, Huang CE, Tsai PS, Tsou HY, Chou HJ, Chen MF, Chen PT, Lee KD, Lung J.
    Journal: Jpn J Clin Oncol; 2014 Dec; 44(12):1164-71. PubMed ID: 25320341.
    Abstract:
    OBJECTIVE: Epstein-Barr virus-positive diffuse large B-cell lymphoma is a provisional entity in the 2008 World Health Organization classification of tumors of hematopoietic and lymphoid tissues. Reports on the characteristics and clinical outcome of this disease in different geographic regions showed great disparities. METHODS: To define the clinical characteristics as well as the prognostic impact of Epstein-Barr virus infection on diffuse large B-cell lymphoma in Taiwan, we retrospectively investigated the Epstein-Barr virus status of 89 patients with newly diagnosed diffuse large B-cell lymphoma in our institute. RESULTS: Using a cutoff point of positive nuclear staining of Epstein-Barr virus-encoded RNA-1-in situ hybridization in ≥20% of the examined cells, we identified 15 cases (16.9%) of the entire study cohort as Epstein-Barr virus-positive diffuse large B-cell lymphoma. The clinical and laboratory features were not different between Epstein-Barr virus-positive and -negative diffuse large B-cell lymphoma patients. Univariate analysis showed patients with diffuse large B-cell lymphoma that were either Epstein-Barr virus-positive or had activated B-cell-like features had an inferior overall survival. Older age, advanced stage and lymphoma with activated B-cell-like features or Epstein-Barr virus-encoded RNA positivity were independent prognostic factors affecting overall survival on multivariate analysis. Patients with two or three of these adverse-risk factors were considered high risk and fared far worse than patients with no or only one adverse factor. CONCLUSIONS: Taken together, we demonstrated that a higher frequency of Epstein-Barr virus association was detected in a Taiwanese cohort of diffuse large B-cell lymphoma patients, and Epstein-Barr virus-encoded RNA positivity was shown to add important prognostic value in these patients.
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