The prevalence of Epstein-Barr virus infection in head and neck non-Hodgkin's lymphomas in Khorasan, northeast of Iran

Reza Zare Mahmood Abadi, Noorieh Sharifi Sistani, Nooshin Mohtasham, Kambiz Kamyab Hesari, Tooraj Vaezi, Mahdi Pazouki, Mohammad Taghi Shakeri
JPMA. the Journal of the Pakistan Medical Association 2013, 63 (7): 882-7

OBJECTIVES: To investigate the frequency and possible role of Epstein-Barr virus infection in non-Hodgkin's lymphomas of the oral cavity and maxillofacial region in Khorasan (Northeast of Iran).

METHODS: The cross-sectional retrospective study assessed the frequency of Epstein-Barr virus infection in non-immunosuppressed non-Hodgkin's lymphoma cases of the oral cavity and maxillofacial region. Formalin-fixed, paraffin-embedded tissue sections from 34 cases of head and neck non-Hodgkin's lymphoma (17 low-grade B-cell lymphoma, 14 diffuse large B-cell lymphoma, and 3 peripheral T cell lymphoma) were selected as a case group, and 10 normal lymph node sections were considered as a control group. Polymerase chain reaction was used to detect the EBV-DNA in tissue specimens. SPSS 16 was used for statistical analysis of the data.

RESULTS: EBV-DNA was detected in 26.5% of NHL samples. Among NHLs, Epstein-Barr virus was found to be positive in 50% cases with diffuse large B-cell lymphoma and 11.8% of low grade B-cell lymphomas. Epstein-Barr virus was not detected in any cases of peripheral T-cell lymphoma.

CONCLUSION: Although it seems that Epstein-Barr virus appears to be an etiological factor in some subtypes of non-Hodgkin's lymphomas, especially in diffuse large B-cell lymphoma, more researches should be done to investigate the relationship between Epstein-Barr virus infection and head and neck non-Hodgkin's lymphomas.


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