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  • Title: [Clinicopathologic features and association with Epstein-Barr virus infection in 235 cases of Hodgkin lymphoma from northern China].
    Author: Shi Y, Li X.
    Journal: Zhonghua Bing Li Xue Za Zhi; 2015 Feb; 44(2):84-9. PubMed ID: 25916637.
    Abstract:
    OBJECTIVE: To study the clinicopathologic features of Hodgkin lymphoma (HL) occurring in northern China, association with Epstein-Barr virus (EBV) infection and concordance between EBV protein immunohistochemistry (IHC) and in-situ hybridization (ISH). METHODS: Two hundred and thirty-five cases were collected and their HE and IHC slides were reviewed to confirm the diagnosis and sort of HLs. All cases were performed with IHC staining for LMP-1 protein and ISH of EBV-encoded RNAs (EBER) was done in 101 cases to detect the existence of EBV. RESULTS: The incidence peak was between age 25 and 35 years, followed by another peak between age 56 to 60 years. There were 135 males and 100 females. The tumor involved lymph nodes in 217 cases, and extranodal sites in 18 cases. There were 3 cases of nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) and 232 cases of classical Hodgkin lymphoma. All tumors were stained for CD30, CD20, CD3. CD30 was expressed in 227 cases (96.6%), CD20 was expressed in 53 cases (22.5%) with different level of intensity. CD3 was expressed only in 1 case (0.4%). CD15 staining was performed in 224 cases and 117 (52.2%) cases were positive. PAX-5 were performed in 213 cases and 160 (75.1%) cases showed weak to moderate expressions. Two hundred and thirty-five cases were immunohistochemically stained with LMP1 and 72 (30.6%) cases were positive. Meanwhile, EBER ISH were applied in 101 cases, and 40 cases (39.6%) were found positive. LMP1 was expressed in 30 cases among those EBER-positive cases, while LMP1 was only detected in 5 cases of the EBER-negative cases. There was no statistically significantce between LMP1 IHC and EBER ISH by pared chi-square test (P = 0.3), the overall concordance rate was 85.2%. CONCLUSIONS: There was a bimodal age distribution in our group of HL cases from the northern part of China, with slight male predominance and mainly nodal involvement. Nodular sclerosis (NS) and mixed cellularity (MC) were major histologic subtypes. When it was compared with the EBER ISH method in detection EBV infection of HL, the more economical and convenient LMP1 IHC showed both high degree of consistency and overall concordance rate.
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